Industrial Disputes Act, 1947
Section 25F—Award granting reinstatement and regularization of retrenched workmen with back wages—Challenged—A party to a proceeding cannot be permitted to challenge the same but thereafter abide by it out of its own free will; garner benefit from it; get the opposite party to effectively alter its position; and then press its challenge after the passage of a considerable length of time—Having allowed the workmen to put in regular service to its own benefit for over two decades, the management can no longer claim an indefeasible right to continue with and canvass its challenge to the award, merely because it made its compliance with the award conditional long ago.
[Paras 15 & 16]