Married in India but getting divorce in USA. Does my USA divorce decree will be accepted in India?

I got married in 2016 in India. After 15 days I came to USA and started asking about passport so I can file for visa for my husband so he can come over here. He lied about his earnings and used my money without asking me. In marriage only one Mangal sutra was given from his side. Whatever gift money was given by my family and his family everything was taken. When I did not send money according to his demand he started putting allegation on me about my character. This was my second marriage so there was a pressure on my from my family to make it work. I kept filing for his visa. Before his interview I lost my job. Still he wanted to go for visa interview. During this period I told him several time to find job and gather some money so he can do expense for visa nd ticket as I come to know everything was nil in his bank account. He wanted to lie in visa interview about my loosing job. I told him that if USCIS find out and if he does not get visa I wont be responsible. I tried to talk to his family so they can make him understand but he called my parents and threatened them. They are old ,sick and living alone in India. I tried to make him understand to get separated amicably. He agreed to so I filed divorce here. when I sent paper by emails to get waiver he asked for originals. I sent divorce Paper though US courts by register AD. The court has not got the register AD slip but he informed that he got the papers. Now he is asking Mangal sutra for signing divorce paper. What should I do? Because of his threatening my family members are afraid. what should I do? Can I go to us court and get divorce decree? Can I send police complaint by email or registered AS to Indian police station?or Do I have to go to india to finish his matter?