Section 1A(35)(d) in The Merchant Shipping (Prevention of Pollution by Oil from Ships) Rules, 2010
(d)which has undergone a major conversion.-(i)for which the contract is placed before 6th July, 1993; or(ii)in the absence of a contract, the construction work of which is begun before 6th January, 1994; or(iii)which is completed before 6th July, 1996.