Sir, My Father & Father's Two Sister have given POA to Grandmother in 1990 for selling properties. Now My Grandmother have sold property to me in 2010 under POA. My father have spoilt everything in his bad habits so my grandmother have sale the property to me which was on my father name. My grandmother have died in 2011. Now My father is telling me that he had revoked the power of attorney in 2008. He want to file a suit against me. Sir I want to know that How can a single person revoke the POA with out another persons i.e. my father'sis. My father have to send us a notice for revocation of POA. Please help me what can i do in this situation. He is telling me that case u/s 420 will be registered against me.