Right of husband/2nd wife childern on property of ist wife

Hi Sir,

Parties:

My Father 1st Wife=No children,No diverse
My Father 2nd Wife=As 3 sons.I am son of 2nd wife

NOTE: My father buyed  property in name of 1st wife on 1980 at which Benami Transactions (Prohibition) Act, 1988 is not with retrospective effect [Husband is govt employee and 1st wife id house wife].1st wife don't have children so remarried.

Question 1:Does My Father have right on that his 1st wife's prich operty .

Question 2:Does 2nd wife or 2nd wife children have right on my father's 1st wife's property .

Thanks alot.