SGT CHAMAN LAL vs UNION OF INDIA .

The Supreme Court addressed the appellant's claim of medical negligence by the Air Force doctors, leading to permanent disability and denial of promotion. The Court emphasized the need for an independent inquiry into the alleged negligence and held that the appellant's medical category change was unjustified without proper medical tests. The Court ultimately directed the authorities to consider the appellant's promotion and compensation claims, reinforcing the principles of fair treatment and due process under Article 21.