This time...duration will not matter..they want to start a debate with you..and if you are playing at lower end..they ll take more time to prove that you know nothing...secondly duration matters..but it doesnt prove that they are considering you.
Thirdly, in 2011 there were many friends of mine who were told that they were being awarded police,FSP or any other..but most of them failed to secure any post.
So both thing can never be a yardstick for success.
My observation is that...present panel will rely more on written part and psychological assessment...!!

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Plan with attitude ,prepare with aptitude,participate with servitude,receive with gratitude.