Divorce

Am having small hearing problem it not mean deaf, multiply concentration issue.before engagement i informed about this to my wife ( i have watsapp proof) later or after marriage she r her parents never ask about this but after baby born she blackmail me I was cheated n married her nu. 2days before baby born my dad was passed due to lever failure. After my father left she n her parents behaviour are become cruel. Day to day she torture me n ignored my rights with baby. One fine day aft I left to office her mother came home with unknown lady and street fight with my mother badly n taken away my wife, baby and all marriage jewels without my knowledge. After I come to know this one day we go to her place with my relatives but her father came with drunk n shout badly so we left again also I went alone her home to get her back but she insult me n not given baby also me. Totally 6+ month gone. We r seperated without any contract and also she not reply my message and disconnected me from social networks too.. Plz advice me what could I do next.. How could I file case if divorce means ? She having eye on my father property, how could I save it from her and avoid alimony? Any option to get my baby back.?