A Registered Trademark is valid for 10 years from the date of Trademark application or from the date of effective renewal validity. Thus, a Trademark renewal application is required to be filed before validity of Trademark registration. If renewal is not filed within the validity of registration of trademark, an extended window is available to the registered proprietor to file the renewal application within one year of expiry of registration along with the government fee and surcharge for late filing of Trademark Renewal application.