Gift deed revocation

Dear sir my mother settled a gift deed in favour of my name with a vacant site including half with constructing building at 2/1/2004. At with out reserved her rights. After 10 days my father take went to my mother and gave a second registration vacant site including the same property at2/12/2004.IN THIS TOTAL PROPERTY I HAVE RESIDING IN INFRIST FLOOR AND MY MOTHER AND FATHER RESIDING TO SECOND FLOOR .and the ground floor is let out in to one murugan at the date of registration. 10/3/2005.my mother went to register office and to write a revocation deed to my son cheated to me to take a car loan on a bank to put my signature s.i don't know wether it is bank or register office to come with shooriti signature only and cancel my document with out any notice. At municipal endorsement also change my name and after that gave me a lawyer notice to play fraud and misrepresentation .my three sisters ware participate the second registration AND the revocation deed attestors. This is the case. Pls gave your suggestions.still I will challenge this casein high court final hearing