He joined Coal India Limited in 1987 at BCCL. Shri Roy rendered his services in BCCL till 2004 in various capacities viz. Safety Officer, Colliery Manager at various Units of BCCL. Thereafter, he was transferred to ECL in January, 2004. There he rendered his services in various capacities viz. Project Officer at Lakhimata Colliery under Mugma Area from January, 2004 to May, 2004 and thereafter he worked at Mugma Area and ECL HQ. He functioned as TS to CMD, ECL from 2008 to 2022. Prior to his joining as Director (Technical) Operations, ECL he was ED (Production), CIL. He has participated in various training programs with respect to controlling fires in different coal mines of ECL. He visited Germany in July, 2009 in connection with a project undertaken by DMT. He was also nominated for attending World Mining Congress held in Istanbul, Turkey in September, 2011. He represented CIL in Poland in June, 2015 as a part of Government Delegation. He accompanied the CIL delegation to Australia in July, 2016. He also attended Advanced Management Programme organized by IICM during June, 2019 with an overseas component in Queensland, Australia.
