¹[87B. Holders of certificates to serve the Government or in Indian ships for certain period.--(1) Every citizen of India who obtains, on or after the appointed day, a certificate shall be liable to serve the Government or in any Indian ship, for such period not extending beyond four years from the date on which he obtains such certificate or for such shorter period as the Central Government may, by a general or special order published in the Official Gazette, specify.
     (2) No citizen of India who has obtained on or, after the appointed day a certificate shall accept any employment other than an employment under the Government or in any Indian ship, before the expiry of the period during which he is liable to serve the Government or in any Indian ship in accordance with the provisions of sub-section (1) and the orders made thereunder.
     (3) Notwithstanding anything contained in sub-section (1) or sub-section (2), a citizen of India who has obtained, on or after the appointed day, two or more certificates shall not be liable to serve under the Government or in any Indian ship for any period or periods exceeding, or, as the case may be, exceeding in the aggregate, seven years or such shorter period as the Central Government may, by a general or special order, published in the Official Gazette, specify.]