Cancellation of gift deed after 3 yrs

My husband and me have been living seperately since Feb 2015. I had come to Delhi (parental home) from mumbai (matrimonial home) to meet my parents, and my husband in the meantime left for Canada. Since after he left even my in laws have debarred me from entering my matrimonial home in Mumbai and my husband has not returned as yet. He has been promising me to be together since then but never did anything. Finally in 2017 he stopped calling and started asking for divorce. I was at my parents in delhi since then and approached the caw cell, after which a dv and maintenence case has been filed in delhi tis hazari court, which i am still fighting. We recently found out that he had in aug 2015 gifted his property share of the matrimonial home to his mother as a Gift Deed, maybe to deny me of my residential share/rights. Its been more than 3 years since the execution of that Gift deed. But i found out about it recently in august 2018. Can i apply for cancellation of that gift deed now and what are my chances of winning that suit/case. Please advise.