My wife and her family torturing m by using my child as weapon

Sir', I am defence personnel.i got married in Feb 2015.at the time of marriage my wife was not willing to married but her family made it.after marriage I convinced my wife and our family life went on.after 8 months of marriage my wife get pregnant which she didn't not want but after my conviction she agreed.while my wife was pregnant her father got arrested in murder case which was pending from a long time.as a defence personnel i restrict my wife not to go her home frequently but not totally.because she was staying with m out of my family.her mother and relative always wash her brain with negative things that not to stay with my parents.now my father-in law came in bail.before 2months I found a dum which was used by my wife bidding m so I got angry and a quarrel arise between us.so i took her to my house on the same day my father-in law came with few uncivilized people to my home and forcefully took my wife and child to his home.i went to police for help where my wife falsely blamed m and my parents that we are torturing her.after a conclusion I bring my wife to my home.after 2 days stay in my home again his father told that I will take my daughter to his home for a local festival.i agreed.but after gong there my wife is not coming back and her parents making her force to stay there saying that we have bring child they will cry.i have talked to my wife but she says what her parents will tell that she will do.what can I do sir.i miss my child.