A Registered trademark can be cancelled by the process of rectification of trademark. An application for rectification of trademark is made before the registrar of Trademarks with valid grounds of rectification in for TM-O along with applicable government fee. After application of rectification, the registered proprietor is given an opportunity to file his response within two months of receipt of the rectification notice in form TM-O only with applicable government fee. Thereafter evidence is required to be filed in support of rectification by the person who has applied for rectification. After filing of evidence in support of rectification, the registered proprietor is required to file evidence in support of his application and finally a hearing is fixed before the trademark officer and the case is decided on merits.