What assistance you can provide and what advance actions I could take before my in-laws gone too far?

I currently live in the UK with my wife and 7-year-old daughter. We are all Indian nations. I have filed a divorce in the UK which nearly at the final stage. My wife has severe mental illness currently being treated in the UK. She also currently facing trial in the UK Court for an assault charge. It is highly likely that my in-laws, who live in Kolkata, would try to take to revenge on me misusing Indians laws. This would mean I could get into trouble when I visit India or trouble for my extend