Legal Question in Wills and Trusts in India

If it is father's self acquired property (out of his own earnings) then you can not claim a share in that property as a matter of right. It is your father's prerogative whether to give to you or to son or to any one. You cannot force him to give that to you. However, when he dies and that too without leaving a WILL then and then alone you will have right along with your brother and mother in that property. But during his lifetime he writes a WILL excluding you, then also you will not be able to claim anything after his death.

You haven't clarified about the kind of property it is whether its ancestral or self acquired.if it is self acquired property then its your father's prerogative he can give it to anyone its his wish after his death you can ask for your share if he dies without leaving a will.