Section 182(3) in The Naval Ceremonial, Conditions Of Service And Miscellaneous Regulations, 1964
(3)On passing the seamanship examination for Branch Rank, a candidate's name shall be placed on a roster for selection to undergo the course referred to in cl. (c) sub-regulation (1). The date of passing of candidates examined during the six monthly periods ending 31st May or 30th November shall be regarded as 31st May or 30th November respectively. The order on the roster shall be determined by those dates, the relative order in each half-yearly batch determined by seniority as sailor on that date.
