Section 168(4) in The Coal Mines Regulations, 2011
(4)Whenever there is any interruption of ventilation by the stoppage or any mechanical ventilator, including an auxiliary fan, installed below ground, the official in charge of the mine or part shall immediately take precautionary measures including withdrawal of men, if necessary against dangers that may arise out of non-compliance with the provisions of regulation 156, to restore the ventilation in the mine or part.
