Sunday, December 21, 2014

How to Backup up hardware key

If you have a industrial software which uses hardware key to authenticate the license, then it is very difficult to run the software without the key dongle plugged in. Their is a chance that the key might be stolen as it looks just like pen drive. If the key dongle is stolen, then the software will not run and you have to buy another license key dongle if  you are not under service contract.

In this article I'll describe you with the method by which you can backup your hardware dongle to enable you to run the software without the key dongle plugged in.

Note: All the steps has to be done while the dongle is plugged in and the application is running.

Step 1. Download Sentinel key reader Dumper.exe. This is used to dump the key file in the dongle which is otherwise impossible to read.

Note: This can only be used with Sentinel SuperPro/UltraPro keys. The best way to find whether your key is Sentinel is that when you run the application dumper.exe, it will not show the message as "Safenet dongle drivers are not installed".

Step 2. Open dumper.exe. Click on Dump as shown in figure. It will save a dump file in .bin format.

Step 3. Now Download Bin2Dng. It will converts .bin file generated in previous step to .dng format.

Step 4.  Open Bin2Dng.exe. Goto Sentinel tab and do as instructed in the figure.

Step 5. After properly doing all above steps .dng file is generated. Now download SentinelEmulator. This will emulate the .dng file as if the dongle is Plugged in the USB drive.

Step 6.  Do as instructed in the figures.

Step 7. After all the steps has been done, remove the dongle and restart the application that uses the dongle to verify itself. You will see, it did not required the dongle and still running.

 You can keep the dongle safe somewhere or use it to run the application in another PC.

Sunday, December 14, 2014

What is atomic clock?

 Have you wondered how time works?  What do you mean by 1 sec?  How the duration of 1 sec is decided?
All these questions will be answered when you understand the atomic clock. World time is based upon a reference and that reference is the atomic clock. 

What is atomic clock

An atomic clock is a clock device that uses an electronic transition frequency in the microwave, optical, or ultraviolet region of the electromagnetic spectrum of atoms as a frequency standard for its timekeeping element. i.e. locking an electronic oscillator to the frequency of an atomic transition. The transition is generally between hyperfine level which is a small shifts and splittings in the energy levels of atoms resulted from interaction between the magnetic moments associated with electron spin and the electrons' orbital angular momentum.

Elements used for atomic clock

1. Cesium-133
2. Rubidium-87

Cesium atomic clock

It employ a beam of cesium atoms. The clock separates cesium atoms of different energy levels by magnetic field.

Rubidium Atomic clock

It is the simplest and most compact of all, use a glass cell of rubidium gas that changes its absorption of light at the optical rubidium frequency when the surrounding microwave frequency is just right.

The most accurate atomic clocks available today use the cesium atom and the normal magnetic fields and detectors. In addition, the cesium atoms are stopped from zipping back and forth by laser beams, reducing small changes in frequency due to the Doppler effect.
Cesium is chosen for atomic clock because of the advantage of its atomic structure. It has lone electron in its outermost shell which has hyperfine structure because of nuclear spin. It needs microwave frequency(very small energy) to have a hyperfine level transition. The frequency needed for he transition is accurately determined in case of cesium and it is easily reproducible using frequency oscillator.

Because of high accuracy of atomic clock, the astronomical time base has been scraped and a new standard has been evolved. We define 1 second as

The second is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom.
 i.e.  1 second = 9,192,631,779 cycles of standard Cs-133 transition

We can say that 9,192,631,779 Hz frequency is needed for Hyperfine level transition in standard Cs-133 atom. This frequency has been accurately determined and precisely reproduced.  

It has been claimed that the best atomic clock gives an uncertainty of 1 second in 30 million years.

New researches are being carried out which is claiming to be 100 times more accurate then the best atomic clock. A newly proposed clock that uses the orbit of a neutron around an atomic nucleus to keep time would be so accurate that it would only gain or lose 1/20th of a second every 14 billion years – or about the lifetime of the universe.


Monday, December 8, 2014

Changes in Minimum wages rates w.e.f. Jan'2013 to present

Construction Labour
Sometimes states minimum wage rate is higher then that of center

If you are currently employed in Manufacturing industries/Construction companies who need general maintenance contracts for their jobs to be done, then its very important for them to have a knowledge of minimum wages to be paid to their labours and keep them self updated of the changes which happen periodically.
As of Central wage rate is concerned, it changes on April and October every year. with a gap of Six Months.

As of States are concerned, they have their own timing for the change but they also follow the same rule of center.
Right Now, as of center directives, every contract should have the price variation clause to enable the contractor to pay their labours as per minimum wage decided by government.This is called PVC clause.
Here I am giving you the links of Center and West Bengal Government circulars of minimum wage for a reference.

Center revision of Minimum Wage rate from April 2013 to March 2015

  1.  w.e.f  April'2013 to Sept'2013
  2.  w.e.f  Oct'2013 to March'2014
  3.  w.e.f  April'2014 to Sept'2014
  4.  w.e.f  Oct'2014 to March'2015

West Bengal revision of  Minimum Wage rate from January 2013 to December 2014

    Sunday, November 30, 2014

    How to make your own website without knowledge of HTML, PHP etc

    Now a days People are quite engaged in online businesses and their are many firms particularly doing business in website designing and search engine optimization. But many are new in this business and don't have enough money to invest to get the services from these firms. Moreover they don't even know the coding to build a website for themselves.

    They don't have to invest their hard earned money in these firms. If you have clear idea about how your website will look like in your mind, then you can use any of the web designing tools available in the market. I personally recommend LMSOFT Web Creator Pro 6.

    One of the best thing about the software is that absolutely no programming is needed to build any page and indeed the page looks professional. I personally used the software to create my own website. Check it out at Go wireless Today.

     Some of the best features about the product is
    • Very simple interface
    • Custom codes can be placed anywhere you want
    • Placement of social plugins is easy
    • Many beautiful built-in themes
    • You can make your custom themes
    • Placement of Google analytics is easy
    • Ready search Engine Optimized
    • Auto Sitemap generation
    You can try the software to see by yourself what it can do. http://www.lmsoft.com/en

    Thursday, November 27, 2014

    Wi-Fi SDHC Class 10 Memory Card

    Have you heard of WiFi enabled SD card for your camera? No, Then for your knowledge I am going to share with you what I have found in the market which was not known to me earlier. Yes, This is true.  Wifi enabled SD cards are available in the market. I was using a camera which do not support WiFi connectivity, then I came to know about this product. This has made my camera to connect to any WiFi enabled devices like Smartphone, Laptop etc and transfer pictures and videos wirelessly. Some of the great feature about the product are:
    • Wirelessly transfer photos and video to a smartphone, tablet, or computer
    • Wireless connectivity: 802.11 b/g/n
    • Wireless range: 16 to 32 feet
    • Support: iOS (5.0+) and Android (2.2+); also supports Windows and OS X through a browser
    • Image formats: JPG, BMP, PNG, RAW
    • Video formats: AVI, MOV, MP4, M2T, MTS, M2TS
    • Turns mobile device into external monitor with Shoot and View mode
    • Stream to three devices at once
    • Instant upload and share to Facebook, e-mail, and other services
    On of the limitation right now in the product is the storage limitation which is only 32GB max.
    You can check it out by yourself.

    Saturday, November 8, 2014


    There is yet another incidence of shoot to kill of civilians in the Kashmir valley two days ago. Two teenaged Kashmiri boys are dead, and two others are in hospital with critical injuries. Soldiers at a checkpoint fired at them without any warning.

    The question arises here is Who gave them power to shoot to kill while patrolling in civilian areas without warning. The answer is simple. They will not do it without any background support and our own government is the supporter of killing (even civilian) in any disturbed areas. Government has protected all military personal from prosecution from such incidence by giving them AFSPA. The immunity that the Army gets under the Armed Forces (Special Powers) Act(AFSPA) gives it the impunity to use what should be the last option first. AFPSA allows soldiers to “fire upon or otherwise use force, even to the causing of death” against those violating the law; it also says “no prosecution, suit or other legal proceeding shall be instituted, except with the previous sanction of the Central Government”. The law has made them to kill first, check later whom they have killed.

    The power is very much needed to counter insurgency/terrorism but in border area, not in civilian. This power has been given to protect civilian not to kill them. They have to be very much conscious in civilian areas(until it is repealed) because they are innocent and you just can't kill anyone on assumption only.

    How much conscious they remain, if they have background support they will do what they like. You will not stop the killing of innocent until the support is removed. Countless violence of human rights have been carried out under the cover of this very act. Now its time to stop these violence in the name of counter insurgency/terrorism. This act is killing our own people more than the insurgent. Its time to come over from the past, from the time of social and political unrest in the states( North-east and Kashmir) when this act was required very much. Now there is no need of such harsh rule which leads to the killing of our own people.

    Its not an easy decision to repeal such act as the act has become soul of armed forces. They will try to preserve the act because it helps them to act freely and quickly without any fear of persecution for their action. But if you think from humanitarian ground and from past incidences( even those which has not came into light but one who has done it,knows it), you will know that the act is not human; and it has to be repealed.

    The people has chosen our new leader thinking him strong in his decision making capability. Maybe he will do what is best for us, but we always wants the act to be repealed.

    Sponsored Links

    Monday, October 20, 2014

    Do you know the power of Internet?

    Internet not only give you knowledge but also give you the opportunity to work from your home, with your family. That's why millions of people around the world are turning to the Internet to work at home. Not only it give you freedom from daily 9 o'clock to 5 o'clock office work and tension of Boss deadlines but also it provide you with the opportunity to start your own business and become Boss. You can take your business wherever you would like to without having to ask for permission
    It don't need any specialized knowledge in any field to start working from Internet, just interest to examine different areas in the Internet is sufficient. you can begin by selecting any field on the Internet. There is a plethora of opportunities and routes to venture into, giving you options like never before.It also give you opportunity to work in the area which is of your interest and so there is high chance for your business to develop and isn't it sounds good, you are making money out of your interests.There is no limit of income in this business not like your daily office job and getting fixed salary monthly. You can increase your income limitless, as long as you show interest in your interests.
    One of the added advantage of online business is that you can take it with you wherever you go. you can work anywhere at anytime.

    Thursday, October 16, 2014

    How to transfer files between android devices and PC

    Obviously the best way to transfer files between PC and any mobile devices is to connect it with data cable and use media storage as the connection mode.

    But now a days every smart devices are coming equipped with wifi module and we can use this option to transfer any file between android devices, between android device and PC or between PCs.

    You can find many methods to transfer files over wifi but all methods require both the android device and the PC to be on same wifi network. If they are not on the same wifi network then you need to upload the files to some cloud storage eg drop box, skydrive and then access them on the PC and download from there. It will cost you on data usage for larger files.

    The best way which I found is to use Samba File sharing app. Only limitation with the app is that it only works on Rooted Phone.

    Step by Step procedure to setup the Samba File Sharing app to share files between PC and android device using Wifi tethering is described below.

    Sunday, October 12, 2014

    All about Cyclone

    As the tropical cyclone named Hudhud originated in Andaman sea is approaching landfall to Andhra Pradesh and Orrisa, its very important for us to know each and every bit of it and also about its siblings who has already visited India and neighboring countries or are yet to visit.

    What you should know about cyclones
    1. Definitions
    2. What are the Process of cyclone Formation
    3. What are different monitoring and naming organization


    Tropical storms, cyclones, hurricanes and typhoons, although named differently, describe the same disaster type.
    Essentially, these disaster types refer to a large scale closed circulation system in the atmosphere which combines low pressure and strong winds that rotate in same direction as Earth. This is usually characterized by inward spiraling winds that rotate anti-clockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere of the Earth.

    Saturday, October 11, 2014

    How to share your android mobile internet with PC

    Android Phone has three different methods to share its mobile internet with PC.
    1. USB tethering : This is most easy method to share internet with your PC. Just connect your phone to PC through USB cable and start USB tethering. Goto Settings > Wireless & networks > More... > Tethering & Portable Hotspot > USB tethering. PC will automatically configure itself to use the internet from phone's modem.
    2. Bluetooth tethering : This methods should be our last option to use the internet on PC as its data transfer speed is very low.
    3. Wi-Fi Hotspot : This method can only be used if both the devices are wifi enabled. If your PC don't have wifi module, you can use external Wireless Adapter .


      How to setup WiFi Hotspot on your android mobile

      1. Goto  Settings > Wireless & networks > More... > Tethering & Portable Hotspot > Wi-Fi Hotspot
      2. Click on Setup Wi-Fi Hotspot
      3. It will ask for Network SSID. Give any name which you like. It just used to identify your device when you connect your phone to PC. 

      Select WPA2 PSK for security mode and provide suitable password to prevent any unauthorized access of your phone. Click Save to save the settings.

      • Before starting Wi-Fi hotspot, switch ON Wifi module in PC.
      • Then switch ON Wi-Fi hotspot. Computer will automatically scan and display your network SSID which you provided while setting Wi-fi hotspot as shown in below picture.

      Wednesday, October 8, 2014

      How to configure Outlook for Zimbra account

      These Instruction are successfully tested in Outlook 2013. These settings will not work in network computers which uses proxy servers to connect to the internet.

      Add New Account

      If this is the first time Outlook has been used, you will be asked if you would like to set up an account. Select Yes and click Next. Otherwise, go to Account Settings.
      • Outlook 2007: Open the Tools menu and click Account Settings...
      • Outlook 2013: Go to the File tab, select Info if it is not already selected, and click Add Account.

      Auto Account Setup

      Choose Manual setup or additional server types and click Next.

      Add Account

      Choose Service

      Choose POP or IMAP and click Next.

      Choose service

      Sunday, October 5, 2014

      Troubleshooting Iberry smartphone facebook problem..

      I have been asked by many that their iberry device has pre-installed Facebook app but they are unable to use it. When they try to open the app, it open for some time and closes instantly.
      When I purchased iberry Auxus Nuclea X (Black) smartphone, I also faced the same problem. I tried to find the solution for many days but remain unsuccessful until I found out that only solution is to root it. I have tried many rooting technique, only technique that worked for this phone is using Root Genius.

      Root genius is one click root tool designed to use with windows computer. It helps user to root their android device by one click.

      How to root using Root Genius

      Step1. Enable USB debugging. Goto Setting> Developers Option> USB debugging> tick

      USB Debugging

      Step2.  Download and install root genius application in your computer.

      Step3. Connect your android device (with USB cable) with USB Debugging enabled(Step1). Root genius will automatically detect you android device if you follow the above steps carefully.

      Step4.  Click on ‘Root Now’ button to root your connected device.

      Root Genius
      Step5. King user app will be installed on your device after some time.

      King User

      Step6. You can check in your app list whether ‘king user’ is installed or not. You can also check the rooting by using Root Checker.

      Step 7. If all goes well, your Facebook problem will be solved. You can check it out by opening Facebook app.

      Rooting has added benefit that it will be open for any app to be installed without restrictions like call recorders etc.

      Points to be noted before rooting.

      1.    Your warranty is void after rooting.
      2.    No data loss in the process. It is very safe.

      Thursday, October 2, 2014

      THE PM Modi's 'Swachh Bharat Abhiyan'…….a great success

      Prime Minister Narendra Modi’s led 'Swachh Bharat Abhiyan' which has started on 2nd Oct on the auspicious occasion of birth anniversary of our Rastrapita Mahatma Gandhi, has been proved a great success as large number of people has participated in this grand event.

      It is the biggest ever cleanliness and sanitation drive in the country. The mega event like this has not been witnessed by me in the past. This is great initiative by our beloved Prime Minister to make us realize our duty towards our country. He has also physically participated in the cleanliness drive to motivate us.

      A 'clean India' by 2019 when the nation will mark 150th birth anniversary of Mahatma Gandhi is the vision driving the mission.

      Generally 2nd Oct is regarded as a National Holiday and all offices, school, colleges remain closed on that day, but the PM has made the day useful by announcing the drive to clean their office, school, college premises, toilets and surrounding areas. In our office too, this cleanliness mission is going on since 28th sept. to 4th oct., and it will be continued in the future too. This will be best tribute to Mahatma Gandhi on his birthday anniversary.

      Government has allocated funds to each ministries like Railway ministry, HRD ministry, Urban and Rural development ministries, Ministry of Drinking Water and Sanitation to do their part to make the ‘clean India’ mission a success. Many experts has been assigned to recommend best technologies for the campaign.

      These fund allocation has been done in the past too, but how much investment has been made to sincerely do the job was a big question. Whenever there is fund allocation for a particular mission and is handed over to the people, there is no guarantee the job will be done until and unless they are particularly told what jobs have to be done. There should also be proper inspection about the quality of the job done. Then only the mission which our PM has started will be possible.

      If each and every Indians (including ministries) do their duty without compromising, then in no time the dream of ‘clean India’ will be fulfilled.

      Wednesday, October 1, 2014

      Real Flexible displays are not far away

      In our previous post, we had talked about flexible batteries which will enable the future devices to be made flexible. In this post we will talk about development in the field of real flexible display.

      • Flexible Display

      A flexible display is a display which is flexible in nature; differentiable from the more prevalent traditional flat screen displays used in most electronics devices this is not just bendable or curved display which is now a day available in the market. We are talking about the display which can be rolled in your hand or can be wrapped in your hand. Let’s talk about the technology behind on which scientist are working on.

      • Electrophoretic, or, electronic ink

      E Ink is the creator of electrophoretic, or, electronic ink — the optical component of a film used in Electronic Paper Displays (EPD). These are designed to mimic the appearance of ordinary ink on paper.

      Characteristics of E-Ink

      • Bistable

      E Ink's technology is commonly referred to as "bistable". What does this mean? Bistable means that the image on an E Ink screen will be retained even when all power sources are removed. In practice, this means that the display is consuming power only when something is changing. For example, when reading on an eReader, power is only needed when turning to a new page but no power is consumed by the display while reading the page. This is most noticeable when an eReader goes into sleep mode yet there is still an image being displayed. By contrast, with a traditional LCD, the display is needs to be refreshed around 30X per second, regardless of the whether anything new is being displayed. Bistability significantly reduces the power consumption of displays using E Ink and is a key reason eReaders have such long battery life.
      • Reflective Displays

      E Ink displays are also referred to as "reflective displays." In an LCD, or "emissive display", light from a backlight is projected through the display towards your eyes. In an E Ink display, no backlight is used; rather, ambient light from the environment is reflected from the surface of the display back to your eyes. As with any reflective surface, the more ambient light, the brighter the display looks. The backlight can also consume up to 40% of the power used in electronic product. Therefore, eliminating the need for a backlight significantly increases the battery life versus using a traditional LCD.

      Flexible electrophoretic displays (EPDs)

      While the Ink film is currently fully flexible, it necessitate the manufacturing of TFT on non-glass substrate to make it fully flexible. It has been made possible by use of a polyimide plastic TFT backplane (also called as All-printed Organic Thin Film Transistor Backplane), which is laminated to the ink layer. These are All-printed Organic TFT Backplane Using a flexible TFT allows for a lighter display module and a more rugged display solution.
      Schematic structure of flexible EPD

      For applications such as cell phones or hand-held devices, the use of a plastic TFT can be augmented by a layer of unbreakable glass on the front of the display to give stiffness to a device which requires significant touch interaction, but still provides an increased ruggedness. In these types of devices the TFT itself is often the component that fails when dropped, rather than the top plane glass. A plastic TFT can significantly reduce display failure due to those drops.

      This technology is successfully employed in E-readers, Displays embedded in smart cards, Status displays, and digital photo frames etc. as the display is monochromatic. Researches are being carried out by using liquid crystal (LCD) and organic light emitting diodes (OLED) technology to produce color images.

      As we have seen in the schematic of flexible EPDs, there is transparent conductive film which act as top electrode for EPDs. Now a days Research around the world has been looking at different avenues for applying graphene to flexible displays, where it offers a potential alternative to the relatively scarce indium tin oxide (ITO), which is used as a transparent conductor to control display pixels. This will enable the manufactures to make low cost grapheme based flexible display in near future.

      Curtsey: Wikipedia

      Sunday, September 28, 2014

      Development in the field of Batteries...

      What is flexible batteries..... 
      Now a days with advancement in technology, there has developed may gadgets which are flexible and which can take user defined shape. These gadgets cannot run on its own as it require power source. This requirement of power source has made the gadgets limited in flexibility. It has made it necessary to develop a process to make batteries flexible too. Researches are being carried out to make the primary(non-rechargeable) as well as secondary(rechargeable) batteries flexible.

      Basic Design
      In general, a battery is made of one or several galvanic cells, where each cell consists of cathode, anode, separator, and in many cases current collectors. In flexible batteries all these components need to be flexible.

      Friday, September 26, 2014

      Know about pipe threading....cont.

      The difference between NPT, BSPP and BSPT seals

      As I told in my previous post, Now follow a bit of information about different pipe threading and their compatible sealing.

      NPT Connections
      NPT (National Pipe Thread) seals are the most popular type of seal for pressure calibration systems in the U.S. and Canada. NPT male adapters have a taper thread that wedges into the female NPT adapter. They seal due to the “out of roundness principle” which means that the male stretches the female fitting until there is so much force that the connection can hold pressure. One of the challenges with this design is that if you connect stainless steel to stainless steel then over-tightening or poor lubrication can cause damage to the threads. Thread sealant is needed to seal but only 2 turns of thread sealant is required. Any more than that and the seal can leak around the thread sealant.
      BSPT Connections
      BSPT (British Standard Pipe Taper) is similar to NPT except for one important difference. The angle across the flanks of threads (if you sliced the fitting in half long-ways and measured the angle from root to crest to root) is 55 degrees and have rounded peaks and valleys instead of 60 degrees as it is for NPT having flattened peaks and valleys. Thus an NPT male will fit into a BSPT fitting or vice versa but they will not seal. This is a popular fitting in China and Japan but is very rarely used in North America unless the equipment to which it is attached was imported. Thread sealant is needed to seal the male and female fitting together.

      BSPP Connections
      BSPP (British Standard Pipe Parallel) is most popular in the UK, Europe, Asia, Australia, New Zealand and South Africa. It is a parallel thread fitting that uses a bonded seal ring to do the sealing. This bonded ring seal is sandwiched in-between a shoulder on the male fitting and the face of the female fitting and is squeezed in place. BSPP pressure gauges have a longer male thread and use a copper crush washer that is squeezed in between the bottom of the male fitting and the bottom of the female BSPP hole forming a pressure tight seal. No thread sealant is needed to form a seal.

      This is end of the pipe threading. If any one wants to know some specific information the feel free to comment in the post. I personally welcome any suggestion or more information regarding the post content.

      Thursday, September 25, 2014

      Pipe Threadings used in process Industries

      I have seen many has problem in understanding the pipe adopters used in process industries. I too had the problem in initial stage but as time passed I get to learn about different adopters. I want to share some information about the adopters for the people like me who is facing problem in their initial stage in process industries.
      The main confusion in the choice of adopter is their pipe threading. If the pipe has different threading then we have to use compatible adopter for that. For example, if we have 1/2” NPT(M) pressure gauge which has to be mounted on ½”  NPT(M) pressure line, we are bound to use ½”NPT(F) to ½”NPT(F) adopter. This adopter can also be written as ½”X ½” NPT(F) adopter. We can’t use pipe Nipple or adopter having BSP threading, which normally people try to do. If you seriously wants to fit the ½” NPT(M) into ½” BSP(F) pipe, then you have to use the proper adopter like 1/2” NPT(F) X ½” BSP(M) otherwise it will damage the treading of gauge as well as the adopter. It can also be fatal for the pressurized system because sealing will not be proper. If you do put NPT into a BSP socket, for example, and you have a bad result (as in somebody gets injured, or property gets damaged, or both) you should not be surprised when your insurer refuses to cover the damage claims.

      I will try to explain each type of threading for the beginners in my next post.

      Keep watching for many interesting topics which many misses thinking the topic as not significant. But keep in mind, nothing in this world is insignificant. Everything has its importance in your life when time comes. Some get to know it early some later in their life. 

      Wednesday, September 24, 2014

      The knowledge behind the incident at Delhi zoo...

      Yesterday afternoon, a gruesome incident has occurred which has led to the killing of a youth by white tiger named Vijay in Delhi zoo. According to eye witnesses, the boy has jumped to the animal's moat in the Delhi zoo. The question arises in here is why the boy has jumped to his death? Whether he was drunk or something? Even if he was drunk, he will not be able to climb the barrier and jump.

      By the way, the incident has occurred and there is nothing we can do about it. But what about the authority maintaining the zoo. Is they are not aware that the incident like this may happen. They have many examples in the past. Why the authority has not taken the precaution? Why they have made the barrier which can be climbed by a normal person.

      According to authority "All the enclosures of the National Zoological Park are absolutely safe. No visitor can reach the moat wall of the enclosure without the stand-off barrier. The visitor crossed the stand-off barrier and ultimately jumped into the enclosure which led to his death by the tiger," the statement said.

      The tiger was watching the boy for about 15 minutes without touching him. If the guards had tranquilizers, then may be the boy can be saved.

      The main point of interest is that they take precaution only on the next day the incident occurred. The day after, they sit and relax like nothing has happens in the past. The news is coming that kolkata zoo enclosure inspection is being carried out after the Delhi zoo incident. Its good practice to inspect the security of the premises regularly but why after the incident has occurred.

      As a popular proverb that prevention is better than cure, hold good in this case too.