Proofs for mental harassment

I have been married for 3 years now. From the time we got married me and my husbands would have fights related to family issues. Then there was demand from my husband to disclose my salary details, which i denied and due to this my husband sent me to my parents home. I stayed there for 4 months and after lot of rethinking to give another chance to my marriage I went back to my husband house along with my parents. My inlaws and husband abused me and my parents and demanded to give me entire salary to my husband and somehow managed to keep me in home. But still the fights have not reduced and i am being tortured mentally for every silly reason. My mother in law always brainwashes my husband and he follows her words. I have been transferring all my salary to a joint account on me and my husband name. But i do not have any details of that account like account number/ account balance etc. My husband never gave me these details. Since my mother in law is staying with us now, daily there will be some or other issues for silly reasons. And she keeps blaming me that i have not become a mother yet. I want to raise a mental harassment case against my husband and inlaws. What should be the proofs i need to have to prove the harassment.