Complaint agianst husband and in laws

Hello Sir/Madam, I am married since Jan 2013 and have a baby girl who is two years old. I'm B.E graduate and worked in private company.After maternity i resigned my job and am unemployed now.My mom in law and husband harass me every day for every single thing in the house, thereby making my life miserable. Actually my mom in law has major influence on my husband and he agrees to whatever wrong she says. Whenever he returns from office she creates one or the other scene and lies to him for petty issues. She tells lies to him and ignites fight/ arguments between both of us and clearly tells my husband, right infront of me to divorce and remarry. I m really very helpless as I hav got a small child to take care of. Also since my hubby is in a private job and he earns sufficient money to run family but they want me to work and give my entire salary to them.They always demand money from me ,even when i was pregnant they didn't give single rupee to me. My husband gave his entire salary ti his mother.They doesn't even lets me know where they spends all the money . At last he beats me worsly on my face i came to my parents house five months before.I didn't give any complaints against my husband and my in laws.They compromised me to stay some days with my parents and come to their house once i feel comfortable.Then after some months they give me an notice by an advocate that i have tortured them and they ready to forgive all my mistake and i have to come to their house with in 15 days. Then i gave complaint to local women's police station but they didnt take this as a serious issue . My educational certificates are in my inlaws house, they didnt give my certificate still.So am not able to get job now without certificates. Please suggest whsband and in laws thought is to get divorce from me and marry another girl with more dowry. Plz suggest legal implications in this matter and oblige. I will b very grateful to you. Thanks in advance....awaiting your legal advise....