Return to India with kids.

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 

Unless there is a restraint order passed by a US court against you directing you to not to take the kids out of US you are free to return to India with them. You can seek protection under Indian law, according to which mother is the natural guardian of a child before he attains the age of 5 years, only if your kids are in India.  

Make an arrangement of ticket to India and simply took the child with you without informing him. When you reach India, you are under the protection of Indian law. If needed file protection order, maintenance against him. 
Now you can also file petition before US court for protection and maintenance .Under most circumstances, state laws provide that biological parents make all decisions that are involved in rearing their child—such as residence, education, health care, and religious upbringing. You can go to either Family Court or Supreme Court. Family Court has special clerks to help you fill out the petition and file the case. In Family Court, it does not cost any money to start a case. Although it is helpful to have a lawyer, you do not need one to go to Family Court. This court is set up to help people who do not have lawyers and who cannot pay money for filing fees 

Dear concerned 

Yes the kidd are below 4 years and hence mother is the gurdian and your husband cannot force you to keep the kids with him . As he is forcing you and is being abusive and as this marriage seems not to be working ....it's better you file a complaint in US against his abusive  and cruel behaviour and also mention the facts on your job as well as that of kids. The cops will support you and he will not be able do any wrong to you. 

Once in India there are multiple options available.  

Dear Querist
immediately file a domestic violence case against him in USA and also child custody, if you prove before the court then the court may pass an order for child custody and return to India without any tension, in India you may get all the protection from him.

Feel free to call

1. Were your kids USA Citizens? Were they borne in USA?

2.If not then you can bring them to USA along with you.

3. Engage a lawyer in India to defend you if your husband files a case in USA demanding custody of your kids.. 

You have not mentioned whether your children wee born in US and are US citizens by birth, if yes then it will be difficult to bring the children to India with you.
Nobody can stop you from shifting to India but the children are at risk, so think what best can be done in their interests.
If the children were born in India, then you may make a claim in US court on that basis.
Consult a local lawyer to know more about US laws in this regard and decide accordingly.