sentences:  From 1946 to 1947, Dhillon served as a staff officer in the Engineer-in-Chief's Office and then returned to Quetta as a garrison engineer.He was promoted to lieutenant-colonel in late 1947, becoming GSO1 in the Engineer-in-Chief Branch from October 1947 to February 1948, before being put in charge of the regimental centre of the Bengal Sappers in Roorkee.This centre was soon to become a part of the newly-created Pakistan and thus there were significant administrative preparations during his time there.