Wants child custody

I got married 4 years back, have a son of 2.5 years of age. My wife doest stay with me since 2 years. I get to see my son like twice a month. We both are from same city. We been saperated cause of continuous tiff between both the families. She also doesn't want to stay with me and seeks divorce. Or if i stay saperated from my family that too near her place then she is willing to come. Refuses to come to my familys place. Because she says she feels insulted. Due to all this regular trauma we fought alot(verbally). making bad statements in anger both sides. Now It like a huge fight for respect between families. And she seeks a divorce. I want my son. Even if saperated. My famuly says have patience, and if she wants u to be shift there near her moms place u can. Thay allowing me. But i know this is all she and her mother were planning to do. I am saying no for divorce. She can come and stay with me at my home. And if she insist on staying away from my family with me., i want that she also stay away from hers. And she has stated for divorce alot of times. 1. I want my sons custody( 2.5 years) 2. And if they want to stall more. What action shall i seek if she is not willing to come and stay with me.