(5)(a)No person shall be admitted as a candidate at any examination for a Manager's or an Overman's Certificate, which is not restricted to mines having opencast working only, unless he has obtained at least a Sirdar's Certificate, which is not restricted to mines having opencast working only and a Gas Testing Certificate; and(b)no person shall be admitted as a candidate at an examination for Manager's Certificate or Overman's Certificate restricted to mines having opencast working only, unless he has obtained at least a Sirdar's Certificate:Provided that the Board may, subject to the conditions specified in bye-laws, exempt any person from the stipulations of the above sub-regulation.
