He last served as the Commander-in-Chief, Strategic Forces Command.

He assumed office on 1 April 2019, following the retirement of Air Marshal Jasbir Walia.

[4] Dhillon is an alumnus of St. Francis School, Amritsar, Sainik School, Kapurthala and Khalsa College, Amritsar.

Prior to assuming the appointment of Commander-in-Chief, Strategic Forces Command, he was Air Defence Commander at Headquarters, Southern Air Command and Senior Air Staff Officer at Headquarters, Western Air Command.

[6] In his career of 38 years, Dhillon has been awarded Ati Vishisht Seva Medal in 2014 and the Param Vishisht Seva Medal in 2021 for his service.