Col. H.S. Chehal did his schooling at The Lawrence School, Sanawar, and graduated from the National Defence Academy, Khadakwasla. He passed out in the superblock from the Indian Military Academy, Dehradun, and was commissioned in the 71 Armoured Regiment in Jun 1983, which he went on to command. After taking premature retirement from the Army, Col. H.S. Chehal attended a certificate course in business management at IIM, Ahmedabad, and joined Fortis as Head Admin, Fortis Hospital Noida, in April 2008. He went on to be FD, Fortis Hospital Mohali in January 2010; ZD Punjab and Himachal in January 2011; RD North in January 2013; RD NCR-A in June 2015; and COO, NCR in December 2015.