Section 6(1)(d) in The Merchant Shipping (Prevention of Pollution by Oil from Ships) Rules, 2010
(d)an annual survey shall be conducted within three months before or after each anniversary date of the Certificate, including a general inspection of the equipment, fittings, arrangements and materials referred to in clause (a) to ensure that they have been maintained in accordance with the provisions of sub-rules (7) and (8) and that they remain satisfactory for this service for which the ship is intended: