Section 153
General power to amend
Part XI: Miscellaneous
The Court may at any time, and on such terms as to costs or otherwise as it may think fit, amend any defect or error in any proceeding in a suit; and all necessary amendments shall be made for the purpose of determining the real question or issue raised by or depending on such proceeding.
The Code of Civil Procedure, 1908 (Act No. 5 of 1908). From the updated text on India Code, with later amendments. Being checked against the official copy; amendment notes are not shown yet.