Air Vice Marshal Asoka Koralage received his education at Ananda College, Colombo. He joined the Sri Lanka Air Force on 17 August 1993 as an Officer Cadet of the 26th Officer Cadet Intake and was commissioned as a Pilot Officer in the Administrative Branch on 17 August 1995.

Throughout his distinguished career in the Sri Lanka Air Force, he has held numerous key command and staff appointments. His appointments include Staff Officer personnel III, Commanding Officer Sri Lanka Air Force Station Weerawila, Staff Officer Administration to the Chief of Staff, Staff Officer Administration to the Commander of the Air Force, Staff Officer Accounts, Senior Staff Officer Accounts, Command Welfare Project Officer, Director Capital Welfare Projects, Director Personnel Administration and Commanding Officer Women's Wing. Prior to assuming duties as the Acting Director General Welfare, he served as the Provost Marshal of the Sri Lanka Air Force.

Air Vice Marshal Koralage has followed numerous professional and military courses both locally and overseas. His qualifications include Master of Science Degree in National Security and Strategic Studies at the National Defence College, Sri Lanka, Advanced National Diploma in Human Resource Management in National Institute of Business Management Colombo, Postgraduate diploma in International Relations at Bandaranayake International Diplomatic Training Institute Colombo, Junior Command and Staff Course at SLAF Academy China Bay, Provost and Security Course in India, Commanding oficer Orientation Capsule course in India and Higher Defence Orientation course in India.

In recognition of his dedicated and meritorious service to the Sri Lanka Air Force, he has been awarded the Uththama Seva Padakkama.

He is married to Mrs. Nadeeka Koralage and is blessed with two children, Sethumya and Sadev.