Plot agreement realted Law help.. plz help me for out of the this defi

Hello sir Sir hmara plot hai.. Use bechne k liye hmne ek 100rupees ke stamp pe agreement kiya tha jisme usne hmare sath dhokebaazi kiya Hai ..usne agreement Marathi language m likhwaya tha aur Usme usne yeh mention kiya ki Usko registery bhi hm krwa k dege ND sare tax etc Clare krke dege aur date 24/6/2019 se 24/7/2019 but usse Hmari yeh baat nhi hui thi... Aur hme ye pata nhi tha ek glti se agreement sign Ho gya aur usse hmne 50thousend amount le liya but ab Woh baki amount bhi nhi de raha h aur hm use kahe rhe h apne paise wps le le toh kaheta h notice bheja h tmhe.. Aur hme abhi tk koi notice nhi aya ab hm us plot ko kisi aur bechna chahte h to aap help kariye Kaise hm solve kre yeh problem ..