Thanks for your reply sir
He declared nominee as a 2nd wife but 1st wife made death certificate on her name.
2nd wife don't have any proof of marriage
kindly look in to the below comment one of the senior was commented like this.. i need your comments is it correct
Note.—In cases where there are two or more widows, family pension shall be payable to the eldest surviving widow. On her death it shall be payable to the next surviving widow, if any. The term “eldest” would mean seniority with reference to the date of marriage"