Section 204(14) in The Naval Ceremonial, Conditions Of Service And Miscellaneous Regulations, 1964
(14)Officers on the Emergency List shall not be eligible for promotion when not employed, except as stated below :(a)Lieutenants shall be eligible for promotion to the rank of Lieutenant-Commander on attaining 8 years' seniority as a Lieutenant.(b)Sub-Lieutenants, who have passed for Lieutenant, shall be eligible for promotion to the latter rank on attaining 3 years' seniority as a Sub-Lieutenant.
