Section 10(2) in The Industrial Employment (Standing Orders) Act, 1946
(2)Subject to the provisions of sub-section (1), an employer or workman or a trade union or other representative body of the workmen may apply to the Certifying Officer to have the standing orders modified and such application shall be accompanied by five copies of the modifications proposed to be made, and where such modifications are proposed to be made by agreement between the employer and the workmen or a trade union or other representative body of the workmen a certified copy of that agreement shall be filed along with the application.