Rule 5
5. Address for service.—
Every person, concerned in any proceedings to which the Act or these rules relate and every patentee, shall furnish to the Controller an address for service, including a postal address in India and an e-mail address, and such address for service shall be treated for all purposes connected with such proceedings or patent as the address of the person concerned in the proceedings or of the patentee. Unless such an address for service is given, the Controller shall be under no obligation either to proceed or deal with any proceeding, or patent or to send any notice that may be required to be given under the Act or these rules and the Controller may take suo moto decision in the matter:(substitutes “Every person, concerned in any proceedings to which the Act or these rules relate and every patentee, shall furnish to the Controller an address for service in India and that address may be treated for all purposes connected with Such proceedings or patent as the address of the person concerned in the proceedings or of the patentee. Unless such an address is given, the Controller shall be under no obligation either to proceed or deal with any proceeding, or patent or to send any notice that may be required to be given under the Act or these rules and the Controller may take suo moto decision in the matter” by 2016 amendment)
(Incorporated by 2016 amendment) Provided that a patent agent shall also be required to furnish to the Controller a mobile number registered in India. (end of insertion by 2016 amendment)