DGMS Circular 03 of 2017 Explained: Illumination Standards in Opencast Metalliferous Mines NOTES & MCQ 📘 DGMS (Legis.) Circular No. 03 of 2017 Issued on: 28th April 2017, Dhanbad Published in Gazette of India: 21st June 2017 (Part II, Section 3(i)) Authority: Chief Inspector of Mines under Reg. 148...