My wife is away since 2 years along with the baby

Dear Sir / Madam, Ours was love marriage and I was living in abroad while i was getting married, Soon after marriage we had a baby and due to that I have quit my job in abroad and stayed back in India to give moral support. After 1 year I have moved back abroad on work and my wife along with the baby joined me after 8 months of time. From beginning there was lot of resistance and mental harassment from my in-laws and also they were in police department. After moving to abroad things was not in good shape as it was before I have found lot of changes in her behaviour and her parents joined us in few months and eventually made her to go back along with them. It's been more than 2.5 years she's gone to India and there is least caring and love from my wife and she's not telling anything and not talking since 8 months, only these days she has started saying she can't live with me. All these days I was trying to get her back but now looks like i have lost my patience. Please advise what is the best thing to do.