Section 96(7)(xi) in The Drugs and Cosmetics Rules, 1945
(xi)[ In addition to the other particulars which are required to be printed or written under these rules, the label of innermost container of the following categories of drugs and every other covering in which the container is packed shall bear a conspicuous red vertical line on the left side running throughout the body of the label which should not be less than 1 mm in width and without disturbing the other conditions printed on the label under these rules, namely:- [Inserted by G.S.R. 597(E), dated 17.6.1992 (w.e.f. 17.12.1997).]