My father who is a hindu by religion got married to another women without divorcing my mother. my mother filed a case of adultery which was found to be made out but because my mother did not want to give divorce, a separation order was passed directing my father to pay maintenance etc on monthly basis. later on my father died in an accident. from the second marriage which is not legal, a step daughter was born. since the second marriage in the suit filed by my mother was declared to be null and void, would my step-sister have any right over the property of my father. my father never made any will or deed etc.