Section 21(6)(a) in The National Cadet Corps Rules, 1948
(a)in the Senior Division if he has rendered commissioned service in the Armed Forces, U.O.T.C./I.T.F./[T.A.]/[J&K Cadet Corps] [Inserted by S.RO. 10, dated 30th, 1957, Part II, Section 4, page 5] or national Cadet Corps (Senior Division) or has passed Certificate `C' Examination of the National Cadet Corps;