Section 56. Where the Central Government is satisfied that the leave rules applicable to persons employed in any

56. Where the Central Government is satisfied that the leave rules applicable to persons employed in any mine provide benefits which in its opinion are not less favourable than those provided for in this Chapter, it may, by order in writing and subject to such conditions as may be specified therein, exempt the mine from all or any of the provisions of this Chapter.". Amendment of section 57.