Cruelty abuse and assault by wife

Hindu Me and my wife are married (arranged marriage) since three years and are living separately since one and half year. She has been behaving extremely violent and aggressive right since marriage. Many times she has assaulted, threatened, abused, insulted and even physically harmed me. She has even behaved badly and abused my parents and sister. We have many documented proofs of her cruel behaviour and injuries and damages she has caused. She has many times apologized, even in writing, but has never improved. She does not take her psychiatric treatment which is adviced. Her parents were aware of her nature since c but hid the fact. She continues to have an aggressive behaviour and even suicidal tendencies, although she is able to carry out her professional duties very well. (She is highly educated and earns well) What legal actions can i take against this extreme torture mental and physical abuse of me and my parents? How to get quick divorce if they dont cooperate for MCD?