1) file for divorce on grounds of mental cruelty. mention baout physical abuses underwent by you , demands for dowry , his drug abuse
2) sek alimony from husband
3) also file complaint under section 406, 498A of IPC read with section 3 of Dowry prohibition act
4) you can also file DV case against your husband seek protection order, maintenance from your husband , retrun of your stridhan , compensation for mental torture undergone by you