Hi pavya....
regarding your third query:
Second wife is a legal nominee in BEST.
Then another question is that
who are the eligible for the pension???????
though the second wife has been made a nominee, that doesnt mean that technically she can lay claim to 100% of the pension amount, the first wife is the 100% legal bonafide person to receive the money, because she has already proved her self to be the legal wife, by court granting her maintainence, and her husband also approving her of being his wife. thats why it is clearly established who the first wife is, but, since the second wife, if she proves that she is also the second wife ( you have to prove that in court the the second lady is indeed the second wife) then the court, at its discretion will grant a certain percentage to the second wife, or maybe divide it equally, then again, it is upon how you argue your case and what the judge seems to think best, then again, you can appeal in the higher court.
my straightforward advice. if both the wives have harmonious relationship, then you can work out a solution of 50-50 payment, make an agreement to share the amount between the two ladies, make a legal contract to share. this will be the easiest way out.
because it may sound easy to fight in court. but remember the 3/4 of the pension amount will be spent on your lawyers fees, making rounds of courts for years on end, and then it will be a loose loose situation for both the ladies. by the way, how much is the pension amount.