How to protect yourself from a false dowry case?

my sister in law is torturing to my parents in the name of dahej act from last 1 year. Due to this my mother is suffering from depression. Yesterday she called her brother to my home and both of them misbhehaved with my mom. She is saying that she will include my name as well in the FIR. I am student living in Delhi . I was not present at that time in my home town . Regarding to this I need legal consultaion so that I could safeguard my future and my parents as well.