Need Urgent Help

Ello All, Due to security reasons and privacy I do not wish to reveal my name but I need law advise / help from someone who is a lawyer. I was born in USA my parents are from India, Punjab they live with me in USA. My father passed away when I was young so it is just me and my mother. I got married in Punjab and during my stay I found out my wife is having affairs/ ignoring me so I went back to America. I talked with my mother in law and told her everything which happened and she sent divorce papers from India to USA. The USA government accepted our divorce and divorce got finalized. She got penalty for not answering our questions because she left the case in between. Then my ex-wife and her family started to harass our family and friends back home in India because they want money. But the USA government gave divorce and said that she cannot take anything from me and just matter of divorce so divorce got finalized. Now recently, they filed a fake Rape charge against me and now she filed divorce in India but divorce already finalized in USA by USA government. I have some questions below please help me and answer: 1. How can she file for divorce in India, when already divorce is granted in USA government and already finalized? 2. Should I send my statement because someone told me not to send statement because laws in India only favor the girl even if the girl is wrong. They trying to get statement from me and I do not wish to do that because I am US citizen and divorce is granted already they harassing for no reason. 3. I have heard they have gotten PO against me and my mother, I want to know what can I do to legally end this matter once and for all, please advise what should I do. Should I simply ignore them? What should I do with the divorce which is submitted in India because they are bothering my family/friends back home. They harassed me and my mother a lot.