She has right of residence by virtue of PWDV Act.
Moreover you have legal duty to provide accommodation to your wife.
So you can file any suit to evict her.
However you may chose to default in making the EMI so you do not lose money anymore when the property is already acquired by someone and let bank attach the proeprty.
You can also sell the proeprty without her consent but I wonder which fool would buy the proeprty which is occupied by wife of the seller.