Dr. P. Pal Roy is a Deputy Director and Scientist-in-Charge of the Blasting Department of the Central Mining Research Institute, Dhanbad, India. He is the inventor of CMRI Vibration Predictor Equation, Burden-Spacing Equations and Fragmentation Analyzing Scale besides establishing a number of CMRI standard and guidelines related to blasting methodology and applications. Recently, he has been associated with two S&T Projects funded by the Ministry of Coal and Mines and Defence Terrain Research laboratory, DRDO, Government of India.