Unlock Advanced Research with PRISMAI Integrated with over 4 crore judgments and laws — designed for legal practitioners, researchers, students and institutions - Know your Kanoon - Doc Gen Hub - Counter Argument - Case Predict AI - Talk with IK Doc - ... Upgrade to Premium Document Options Get in PDF Print it! [Cites 0, Cited by 0] [Section 91(1)] [Section 91] [Entire Act] Union of India - Subsection Section 91(1)(d) in The Coal Mines Regulations, 2011 (d)once at least in every 12 months, the winding engine as to the condition of its internal parts.