J. K. Synthetics vs Rajasthan Trade Union Kendra & Ors

The Supreme Court upheld the constitutional validity of Section 25-N of the Industrial Disputes Act, 1947, which mandates prior approval for retrenchment of workmen. The Court ruled that the lay-off and subsequent retrenchment of 2367 workmen by J.K. Synthetics Ltd. were not justified, as the company failed to comply with the provisions of the Act. The judgment of the Rajasthan High Court was set aside, and the matter was remanded for further proceedings consistent with the established legal principles.