Revocation of gift deed mutually

I executed a gift deed in kerala in the name of my mother. I am donee, my mother is recipient. The gift deed was without any conditions, registration doc mentioned as gift is for my mother's expenses. It was a small plot of land. My mother already own a house and eligible for pension. And we wanted to cancel it. There were two options. 1. Write new gift by mom to me. This will cost more. 2. Cancel gift deed by both parties. This will cost very less. For option 2, we found better with less fee, need some help for this option. Can we cancel gift deed even after land is changed to mom's name in village office and land tax is paid.