Section 119(1)(c) in The Naval Ceremonial, Conditions Of Service And Miscellaneous Regulations, 1964
(c)Educational Qualifications. - A candidate must have passed the Final Dufferin Passing Out Examination either :(i)with Extra First Class Certificate with at least 50 per cent, marks in Trigonometry; or(ii)with First Class Certificate with at least 50 per cent marks in each academic subject and in Trigonometry.