Rule 18

18. Service of Documents by the Registrar. –

(l) All communications and documents in relation to application or opposition matter or registered trademark may be served by the Registrar by leaving them at, or sending them by post to the address for service of the party concerned or by email communication.

(2) Any communication or document so sent shall be deemed to have been served, at the time when the letter containing the same would be delivered in the ordinary course of post or at the time of sending the email.

(3) To prove such service, it shall be sufficient to prove that the letter was properly addressed and put into the post or the email communication was sent to the email id provided by the party concerned.