Need Divorce with wife various reasons

Hi I am 38 years-old male married (Jan-21) Religion is Hindu, to 31 years old female She did a job in school as clerk she earn 10,000 per month as per her documents. my wife is pregnant now, I am realizing now that i cannot continue with her in future as there is incompatibility between us. She has first marriage. her divorce case was not yet ordered, first divorce is pending. there are 3,4 criminal cases on my wife. and her first marriage 498 and domestic violence's cases in court. she was not disclosed with me. now she is behaving very badly, use bad language to me and my mother. She cheated me her 1st engagement was broken she was not told me. and doing bullying behavior ( Dadagiri) and she threating me. now she told me I will sign on mutual divorce and after delivery I will give my decision. In her family her brother, and mother have also the criminal cases. now this is very difficult and metal stress depressing for me and family. 1)please suggest how can get Divorce / Separation from her. 2) She can file maintenance on me ? What else she can demand ? 3)What about the baby