Yes, Class –III Digital Signature is required to file Trademark Registration Application online through government portal i.e. http://www.ipindia.gov.in/ . The DSC is required by either agent or the attorney under whose code the application will be filed. However, one can file physical application with Registry where there is no requirement of a Digital Signature.
The application filed through online route is preferable and promoted by government to save environment (green initiative) and also one should keep in the mind that there is slight difference in the fees applicable for both online or offline application.
An attorney or agent is required to apply for Class III DSC with certified authority in order to be able to file the application online with Trademark Registry.
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