Prperty Right of Daughter if Father is al

I am married 5 years back... and I am asking this question on behalf of my wife .... We had love-marriage and from the D-Day my father in law is not accepting this marriage and always creats non-sense scenes.My wife has 2 younger brothers.... My father in law has 2 bunglows and farm about 12 Acre at his home town.... If my wife her share in this property,what will be her share?I came to know that total property is devided in two equal shares and then 1 part is given to brothers and other to sisters? If yes, how it is be done? Or for which property my wife can claim?? Bunglows are self made but Farm is ancestral...... and plz let me know what to do if her father took decision of not to give anything to my wife.........