UNION OF INDIA vs M.S. CHOUHAN .

The Supreme Court addressed the promotion criteria for diploma holders and science graduates in Ordnance factories under the Indian Ordnance Factories Recruitment and Conditions of Service (Class III) Personnel Rules 1956. It held that promotions must adhere to the established recruitment rules rather than automatic promotions based on service duration. The Court set aside the Tribunal's directive to treat initial appointments as Supervisor Grade 'A', affirming that promotions to Chargeman Grade-II require adherence to the prescribed rules and cannot be granted retrospectively based on prior service.