Section 17. In section 33 of the principal Act,

17. In section 33 of the principal Act,— (i) for sub-section (1), the following sub-section shall be 33. substituted, namely:— "(1) Where in a mine a person works above ground for more than nine hours in any day, or works below ground for more than eight hours in any day or works for more than forty-eight hours in any week whether above ground or below ground, he shall in respect of such overtime work be entitled to wages at the rate of twice his ordinary rate of wages, the period of overtime work being calculated on a daily basis or weekly basis, whichever is more favourable to him."; and (ii) in sub-section (3), for the words "such allowances including the cash equivalent of the advantage accruing through the sale on a concessional basis of foodgrains", the words "any dearness allowance and compensation in cash including such compensation, if any, accruing through the free issue of foodgrains" shall be substituted. Amendment of section 33.