Domestic violence and dowry harassment

I (working as class 3 employee in govt.) was married in 2015 with a manager level bank employee. I have baby boy of age 3 years. At same time her sisterinlaw also got married. She is also class 3 employee. We all are working within 40km of his (my husbands) home which is capital of the state. My parents gave gold items as per marriage rituals in our community. But their paragana is different from our. After some time they started quarreling with me. Everyday someone start quarrelling with me without any reason. My mother in laws started abusing me for small things and harrasing me and my husband has been silent all the time. My husband only do her office work and dont do any house work. All house work carried by my father in law. During my delivery my mother got serious illness and after my delivery she left the world. Now my husband started beating me for small reasons. He beat me during one of the last rituals of my mother. My in laws complained me regarding less gold. I was giving my half salary (15000) to my husband at that time (almost more than 2 year). Recently in January I have given 3 lacs but after that they started abusing again. My hometown is 100 km to my office and my husbands home is 30 km to my office. I am living in my govt allotted quarter which is 1km from my office and I am living there since my job. After my marriage I shifted to my husbands home. But I kept my quarter and use sometimes as it was of very less HRA. But after 2 years of marriage they told me to surrender my quarter but I was afraid that they will be in power mode if I surrender they will harass more. Meanwhile his siter also have FIR with her husband living with us and she also torture me. Now I am again living at my quarter and my father supports me as I have baby boy of 3 year. I have also caught my husband chatting with some girls but he told me that he will not do this in future. He beat me many times, one time we went to tour of mumbai where he beat me without any reason. I was tolerating this things as I don't have my mother and my brother and sister living in different state and my father is also senior citizen. Almost all my expenses were beared by me. This is fifth time I have to start living at my quarter because every time when I go there they start harassing her. Her other sister is also in Govt service and unmarried. Also we tried through their relatives as middle man but it didn't work and failed two times. My sister have proof of harassment but we are not going to police as we want to keep this marriage but their harassment is continue and we don't know what to do? I have also sometimes suicidal thinking but have son so I will not do it. This is continue since marriage and I dont think that they will change. Can I file a police complaint from my hometown? What IPC I can File? What will be consequence's? What about of his job, will it be effected on his career? I dont want any money but the abusing, domestic violence, dowry is not acceptable.