Wife is not ready to come in joint family and filed a compliant in mahila thana

Dear Sir My wife and my in laws from the beginning of marriage forcing to go for separation from parents and for that they put false allegations of violence and cruelty on my mother. the whole drama was once started and ended after 6 months of marriage. but now again after 4.5 years of marriage she and my in laws started this again. i was already having trust issues with her but now she has crossed all limits. we are having 22.5 years of child. she had filed a compliant in mahila thana from where i got a call to come. I went there, they heard both of our arguments and at end clearly told them i can't go for separation from parents as they are aged and dependable on me. I offered her to come in same house and leave at first floor of home so there will be no interfare. At starting my wife, rejected this and asked them to do next level proceedings(i don't know what are that). but after she said she will think on this and come back again. Dear sir I just wanted to know what will be next level proceedings if she is not agree to live in same house. Also, want to mention that she want maintenance only no divorce as she said this there. what other charges she can put as in first meetings women cell has not mentioned any charges to me, just said she has filed a complaint that she don't want to live with in laws and want to live with you in separately rented house. In case of divorce, can I get child's custody as they are not sound financially to take care of child. I can't live with her separately as i broke all my trust on her because of her false allegation on me and my parents. she is not allowing to meet and making VC with child. Her parents and relative threatened me earlier that if you are not going to shift separately they will take so and so amount etc. Please advise. Also, is there any option of section 9 notice now. I don't want to leave my child as he and I are both attached with each other.