Need Help...I had purchased 1 apart.jointly with my wife 3 years ago

For this apartment booking I only had invested the money and also had taken the loan through a bank in which my wife is also a co-applicant while applying for loan.I am only paying complete EMI for it till date. My wife has filed a false 498 case against me and currently don't have communication with her.1) As in my provisional allotment letter my wife names comes as jointly with, so I hope I cannot alone sell this disputed property.2) If I cannot sell it then why I am paying the complete EMI for it for which my wife claim later. So please suggest the best way forward...