father cheated a court

My father cheated a court and he got divorce. He is changed respondent's adrees.that address belongs to my father rented home.he picked my mother's notice.so we don't know.that way he got divorce in 2004.and my mother reopened that case.court cancelled his divorce in 2005.and he got second marriage in 2005 and two children's. My mother have 2 major i(son),sister(26).he is the govt employs.can we file 498A or other section ? Can we file 420 ? What will the punishment for cheating a court ? Plz plz suggest.