Gift deed cancellation by mother and father

My mother has gifted me 3 acre agricultural land near Chennai in March 2013. Till now i doing cultivating paddy and sugarcane in that land. I have changed the patta in my name recently I am in a family business along with my father. In April 2014, my father and my mother ill-treated and abused me and my wife,so we left living with my parents. But i didn't leave my family business till this year 2019 Now in Aug 2019, my only brother had a second Girl baby and he is staying with my parents He has left his job due to some issues and now forcing my parents to cancel the gifted deed given to me. Now my parents have joined with him and has approached collector and have given a petition to Collector. That the gifted deed was taken by force and coercion My father has also forcibly pushed me out of business. My father and my mother are well to do people. My fathe has nearly about 2 lakhs as rental income and my mother has 1 lakh rental income and my brother also have 1 lakh rental income I live in a rented house and also i have a shared property with my brother, on which he is also not sharing the rental income with me. He is full enjoying it. How should i face the petition filed by my father Kindly guide Vadivelan