1. IF you can prove with documentary evidence, THAT you purchased the property in name of Wife, with your own Self-Acquired Funds, that you will be classified as "Ostensible Owner" under the parameters of Section 41 of "Transfer of Property Act" and you derive absolute authority to Use /Sell /Gift /Donate /Transfer /Mortgage /whatever ....
2. However in order to legally activate your right for above purposes, you will need to file a local Civil Court proceedings (Declaration Suit), citing the above and transfer of property in your name, by following due procedures of law. A local Property Lawyer will be able to help you achieve this.
Keep Smiling .... Hemant Agarwal