If you have been victim of abuse and domestic violence file police complaint against your husband in USA
2) if there have been repeated incidents of abuse you should mention it in your complaint . Your husband would be prosecuted in USA for felony
3) your police complaint will help you in your custody battle fir children
4) if there is no stay order restraining you from bringing the kids to India you are at Liberty to travel to India with kids
5) in India apply for custody of children . Welfare of kids is paramount consideration
6) you can also file for divorce in India on grounds of mental cruelty