Question of mental abuse

My husband an i married 6 months back since then i have been facing mental torture even when i am not physically hurt by anyone , i am on a continual basis facing mental unhappiness with him . i had a doubt on him since beginning that he had an affair since he was talking to someone as i suspected but he never revealed. my suspicion was made truth by my mother in law whn she told me in frank state that he liked some girl and wanted to marry but they disallowed this since she was of same caste . my husband never paid attention to me as newly weds do . he never use to talk to me in front of anyone. he never used to share with me anything even when i tried to ask him , instead he would talk to the other girl in alone about her issues. i always felt parted. he demotivated me in all aspects. all i tried to do was to impress him . lately i took an ipill not telling him because he had no job and i wanted to wait, he found the pill packet and made a huge fuss. he called him all aunts , his sister, brothers ., uncles and everybody from his family. i was too shocked because this was too much for such a small thing . his sister staraighaway asked me to leave home and continually abused me with my mother in law. they took away clothes from my closet and called my parents to take me away. they called everybody from my family too to take me away. while my husband was numb , he said he doesnt want to live with me , his sister asked for divorce continually and said she would make him married again . i sat on my husbands feet and asked sorry for the pills , but he abused me and told me to leave. they made a lot of stories that always betrayed them for chils name. they didnt hear me. while i was pregnant that day as i found. i wanted to keep the baby. but they said to leave , and divorce. when i felt fully done with their cruel words , i tried to leave home when my husbands sister pulled me from bad my bruised my hand badly and locked the door from inside , meanwhile my maasi came to take me away and i left the house in haste. as i was in car down the gate , my maaasi i and our driver saw all my mother in laws sister throwing my luggage outside the house. my husband has no words . i was undr depression pills whne i came back to my maternal home . i went through a miscarriage becuase of which. the baby was for just 15 days in my womb . i want to file a case against them . plz help me i want to file a case against them