Property division in case of Divorce

my father bought the house with help of maternal and paternal grandfather's financial help in the name of my mother, my mother has been a house wife since 28 years, so now my mother and father are getting divorced, so the house will be divided?? or she gets everything? we have proof of cruelty by my mother on my father. she even filed false fir against my father, with domestic violence case and dowry case, she is having affair, my maternal family including my maternal grnadmother, uncles, aunts, are all on my fathers side, we are being threatened by her, she doesnt let my father enter the house, what shall we do? we even filed an fir against her in police stn for cruelty