Hi
As a matter of fact and by law she is joint owner.
No court can take her away from that tht as you have made it in that way unless you both make an amicable settlement.
She cannot get the house in her name alone ,she can get only her share as the co owner unless you agree as a part of divorce settlement.
Regarding the cases she filled and dismissed are not any more effective if not properly conducted by her lawyer.
The best option is to try for an amicable settlement talk to her for this and see what are the terms.
Even if you have paid EMI the ownership which you created in her name cannot be nullified. Without contribution she became the joint owner and she had the equal right.
So try for an amicable way instead of dragging as under the provisions till you both finalise your divorce three dispute of ownership and her RT as a wife will be there and she will be able to get an order for that under existing provisions by filling fresh cases.