The problem is that you decided to agree with the courts order of paying 15,000/month! Did you appeal it? If not, why didn't you?
Another problem is that you have all these cases on your head and you are another country. The smart thing to would have been come here till the cases are over and then go back. 75 lakhs is a ridiculous amount. I know people who asked for 1 crore and when the guy was unrelenting, and played the game well..the girls side have now come down to 4 lakhs. Unfortunately, the guy doesn't want to settle anything less than 10 lakhs...the money they have to pay him to give her a divorce.
You need to wisen up and start fighting hard. Please join a local Save Indian Family chapter and learn to fight these gender biased cases and the terrorists.