UNION OF INDIA vs A.RADHAKRISHNAN .

The Supreme Court held that the Railway Board's decision to treat the Progress Wing of the P.C.O. as a separate cadre while not doing the same for the Inspection Wing did not violate Articles 14 and 16 of the Constitution of India. The Court found that the functions of the Inspection Wing, which focuses on quality control, are distinct from those of the Progress Wing, which is involved in manufacturing. Therefore, the classification made by the Railway Board was justified, and the High Court's ruling was overturned.