Your wife has gone rogue. Forget divorce. She is now in the clasp of Indian lawyers and she will be banging her head around Indian courts for next 5-7 years before she will come to her senses.
What you should do
1. Plan to not go to India for next 5-7 years. If you go, plan to stay for atleast 6 months.
2. Find a new girl, start living together and focus on life forward.
3. Don't focus on what your wife is doing. She is going down well traveled path that always leads to self destruction. You cannot do anything to stop her, you can only watch the drama. The Indian lawyers will suck her blood for few years and when all her money is over, they will give you easy divorce. Don't pay any settlement, any alimony. Just sit quiet and watch drama.