What complaint should i file for husband and in-law's torture?

My name is subitha, age 25 and got married to a person kannan whose age is 43 now who got divorced and had a girl child. Our's is a love marriage and going to complete 3 year, at start my parent didn't accept my marriage, but later on they accepted. In 8 months after mrg i got pregnant and went to my mom home for delivery. since then my sister-in-law created many problem as well as my husband from his sister's guidance started to torture me. I have given birth to 2 boy babies(twins). Now my problem is, my husband didn't taken care of my kids and also i am doing ME in part time, so i couldn't able to take care of both babies lonely. so i left my babies in my mom home since aug 2015 until i complete my studies (upto apr2016). But now my husband torturing me mentally a lot and physically, and not even taking care of family. he is roaming like a bachelor. I want to change his attitude which is possible only legally, so what complaint can i give on him, so that it should not go extremely because for the sake of my kids, i don't have the idea to divorce him, but want to live a peacefull life with him and my kids.....