Section 2. Amendment of section 13

2. Amendment of section 13. —In section 13 of the principal Act, in sub-section (2), for clause (d), the following clause shall be substituted, namely:— "(d) the terms and conditions of auction by competitive bidding, the details of mines and their location, the minimum size of such mines and such other conditions which may be necessary for the purpose of coal mining operations including mining for sale by a company under sub-section (1) and sub-section (2) of section 11A.". ————