Divorce and property in joint name

Hello everyone. Few years back i brought a flat. I out of obligation and love I put my wife name in the flat as a associate owner. I paid completely for the flat. The cost of the apartment today is approximate 1.10 cr .. i paid completely for the apartment . We still have 15 lakh rupees loan from a bank. My wife was a housewife for the whole married life. We have a son she took him to Europe. I have no access to my son. I worked on a ship. She had a boyfriend. Finally she decided to file divorce and leave india. Now i have a job which pays me 10 thousand only a month. So now my mother pays the loan emi amount of 45000. By the time the loan finishes my mother would have paid around 30 lakhs.. How much interim maintenance i have to pay. She claims that i have erectil dysfunction and i am a alcoholic. My previous salary was 2 lk now it is 10000. ???? I dont want to sell the flat. And i dont have money to pay her. I live in the flat. Will the court order me to sell the flat and pay her??? Can my mother ask for her share with interest as she is paying the loan???