Section 150(10) in The Coal Mines Regulations, 2017
(10)A record showing the exact height and width of such workings, the number of bore-holes driven, the length of each bore-hole, the places at which and the direction in which each bore-hole was driven, shall be maintained by the official referred to in sub-regulation (9) in a bound paged book kept for the purpose and the entries made therein shall be signed and dated by such competent person and shall be countersigned and dated by the manager every day.
