Section 148(5) in The Drugs and Cosmetics Rules, 1945
(5)[ Manufacturing license number, the number being preceded by the letter M.] [Clause (5) renumbered as Clause (6) and before Clause (6) as so renumbered, Clause (5) inserted by G.S.R. 245, dated 3.2.1976 (w.e.f. 21.2.1976).]