Siemens Ltd.& Anr vs Siemens Employees Union & Anr

The Supreme Court upheld the decision of the Bombay High Court, affirming that the company violated Section 9A of the Industrial Disputes Act, 1947 by altering the conditions of service without prior notice to the workers. The Court emphasized that the designation of 'Junior Executive Officer' was merely a change in nomenclature and did not reflect a genuine managerial role, thereby infringing upon the rights of the workmen as per the 1982 agreement. The Court ruled that the trade union's complaint regarding unfair labor practices was valid, leading to the dismissal of the company's appeal.