The Patents Rules,2003
Section 61. Copies of documents to be supplied
(1) Copies of all documents referred to in the notice of opposition or in any statement or evidence filed in connection with the opposition and authenticated to the satisfaction of the Controller, shall be simultaneously furnished in duplicate unless the Controller otherwise directs.
(2) Where a specification or other document in a language other than English is referred to in the notice, statement or evidence, an attested translation thereof, in duplicate, in English shall be furnished along with such notice, statement or evidence, as the case may be.