law: The Major Port Authorities Act, 2021
  50. Power of Central Government to exempt from obligation to use port assets.-
  Notwithstanding anything contained in this Act, the Central Government may, in the interest of security of the nation or on account of a grave emergency, by general or special order, from time to time, permit certain specified vessels or classes of vessels to discharge or ship goods or certain specified goods or classes of goods, at such place in a Major Port or within the Major Port approaches, in such manner, during such period and subject to such payments to the concerned Board in relation to such Major Port or such Major Port approaches and on such conditions as the Central Government may think fit.