Section 182(9) in The Naval Ceremonial, Conditions Of Service And Miscellaneous Regulations, 1964
(9)A Leading Seaman given the [rank] [Substitued by S.R.O. 192,dated 10th September, 1973] of acting Petty Officer maybe confirmed as Petty Officer at the expiration of 12 months if recommended in all respects for Branch Rank. If not so recommended or if found unsuitable for Branch Rank at any time before the expiration of 12 months, he shall revert to his substantive [rank] [Substitued by S.R.O. 192,dated 10th September, 1973], being eligible for subsequent [promotion] [Substitued by S.R.O. 361, dated 10th November, 1975] to Petty Officer [rank] [Substitued by S.R.O. 192,dated 10th September, 1973] in the ordinary course.
