[58. Amendment of specification before Appellate Board or High Court.—
(1) In any proceeding
before the 6*** the High Court for the revocation of a patent, the 6*** the High Court, 7***, may, subject
to the provisions contained in section 59, allow the patentee to amend his complete specification in such
manner and subject to such terms as to costs, advertisement or otherwise, as the 6*** the High Court may
think fit, and if in any proceedings for revocation the 6*** the High Court decides that the patent is
invalid, it may allow the specification to be amended under this section instead of revoking the patent.
(2) Where an application for an order under this section is made to the 6*** the High Court, the
applicant shall give notice of the application to the Controller, and the Controller shall be entitled to
appear and be heard, and shall appear if so directed by the 6*** the High Court.
(3) Copies of all orders of the 6*** the High Court allowing the patentee to amend the specification
shall be transmitted by the 6*** the High Court to the Controller who shall, on receipt thereof, cause an
entry thereof and reference thereto to be made in the register.]