K. DAYANANDALAL & ORS. vs STATE OF KERALA & ORS.

The Supreme Court addressed the promotion of Constables to Head Constables in the Kerala police force, interpreting Rule 28(bb) and Rule 10 of the Kerala State and Subordinate Service Rules, 1958. The Court held that promotions must be based on the conditions at the time of vacancy and that claims of those qualifying after the select list is prepared but before the vacancy occurs cannot be overlooked. The judgment clarified the procedural requirements for promotions and upheld the validity of the select lists prepared based on the promotion tests held in 1978 and 1981.