Dear Praveen bhai,
I think you are new to Indian laws and their one sided effects.
You still don't know that you are a NRI guy who has been trapped in Legal extortion game by the way of biased one sided women friendly law.
From your initial post which you are alleging that why my FIL done like this?
Dude, you are under the game of extortion of money.
Without any delay file a suit of extortion,threat , fraud, and threat of life and limb before CJM court of your local jurisdiction.
What ever evidences you have is handy in you all cases.
This all happened because you and your family was not aware of these flourishing racket of legal prostitution under the sacred relationship so called as marriage.
Your wife is prostitute and your FIL is her PIMP.
and yes, just follow the advices of Mr.Rocky it will be useful for you.
PS: Fight your cases with tooth and nail, don't bow down against any illegal demand of their,let her beg on your feet to ask her freedom.
Just go through last 1 year threads on 498a,bail,AB,quash,Revision,MCD,Divorce,DVA2005,maintenance etc.
Make yourself well equipped with basic criminal laws and family laws which will be very useful for you in your long run.
ESIS