Mortgage loan.. mother is co-owner, not paying a penny

I am the son paying the monthly loan for a 2 bhk flat, where my mother is the co owner (without paying anything). I am from Kolkata. After marriage a big chaos occurred, and me, my wife and 3 months baby were forced to leave the house. My mother owns another 1 bhk flat. Under pressure of some well-wishers of us after spending 1 week in a cheap rented room, we got the key to shift there. Later she only asks to leave that 1 bhk flat also. How to get justice for this. I am a male , is this the issue. That I am always liable to pay for everything.. I need to pay full Emi, but not able to stay there. I am paying all my mother and father expenses, home bill , tax for two flats.. But 1 bhk flat is not good enough.. it is a old and small construction. I want to purchase another flat,. Don't want to pay for the flat where I am not residing. But I can't take another loan also. My mother has more than 7 lacs in savings or FD. I know because used to fill the form 16 for her. My father income is very less, he never earned enough for family. We lived a poor life. My mother is very greedy and selfish. She asks only money from me. My parents do music tution as earning. Is there anything positive for me? Can I get justice? Can I get rid of paying the emi. Already I have paid for 4 years.