Hii Im frm Uar Pradesh My siser g married in 2005 by mal agreemen beween parens and Hind rials Sh

Hii I'm from Uttar Pradesh. My sister got married in 2005 by mutual agreement between parents and Hindu rituals. She lives in her husband home for 14 years but her husband did not accepted her. parents believed that after completing his education he could changed but these things have not happened. Even after getting a good gov job he refuses to accept her. He doesn't give any money to her... and his family trying that she leaves her husband home. They are torturing her mentally. She makes food for all the family members and clean. she is also physically handicapped by one leg and she is not a independent woman. Her husband doesn't want to talk on this topic. She is working like a slave. In this case what should I have to do.