K.K. TIWARI vs UNION OF INDIA .

The Supreme Court upheld the decision of the Central Administrative Tribunal (CAT) regarding the promotion of Executive Engineers, affirming that promotions should be made in the ratio of 2/3rd from Assistant Executive Engineers and 1/3rd from Assistant Engineers as per the Indian Defence Service of Engineers (Recruitment and Conditions of Service) Rules, 1991 framed under Article 309 of the Constitution. The Court found that the High Court's dismissal of the writ petitions challenging the CAT's order was justified, as the executive instruction dated 29.07.1997 was contrary to the statutory provisions. The appeal was dismissed, affirming the CAT's directive for promotions.