The husband is bound to provide residence to the wife. If he does not have any property on his name in india, then he need to provide maintenance to her or a residence. Further, as she is refusing for mutual consent divorce, file for a contested divorce on the ground of non-consummation, dessertion and creulty. The boy also needs to challenge the order passed by the Trial Court dismissing the Petition for annulment of Marriage. If the Magistrate has passed an order giving residence to wife, that could be done only if the property has been partitioned and on your share, the wife could claim maintenance.
Please note if the boy is not capable to take care of the wife, then it becomes the duty of the father in law to provide maintenance and etc. So do the needful in india by contacting a good family lawyer.