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INSSSL Military Research Officers


Wing Commander Kosala Ranasinghe

MSc (Def & Strat Stu),
BSc (Def Stu) in Mgt, Pg Dip (Def Mgt), psc, MIM(SL)

Sri Lanka Air Force


Wing Commander Kosala Ranasinghe was born on 20th February 1978 and joined the Sri Lanka Air Force as an Officer Cadet in 1998 after his primary and secondary studies at Royal College Colombo.

INSSSL Past Members


Commmander (C) H.A.De Zoysa

RWP, RSP ,PWO

Sri Lanka Navy


Commander (C) H.Anura De Zoysa born on 16th January 1977. He joined the Sri Lanka Navy on 19th December 1997 as an officer cadet and successfully completed the basic training at the Naval & Maritime Academy Sri Lanka.

Major Suranga Witharana

psc, MSc (Def & Strat) Studies, Msc Military Science, MCPS

Sri Lanka Army


Major Suranga Witharana is presently serving as a Security Advisor and Military Research officer at the Institute of National Security Studies of Sri Lanka.

Wing Commander Malith Ranarajeewana

Sri Lanka Air Force


Wing Commander RPDM Ranrajeewana is presently serving as Defence Coordinator (Air Force) at the Institute of National Security Studies Sri Lanka, Ministry of Defence. He was born on 21 st April 1976 and enlisted to Sri Lanka Air Force on 07 th January 1997.

Commander SP Kathriarachchi

Sri Lanka Navy


Major N S P De Silva

WWV RSP psc SF

Sri Lanka Army


Major Priyadarshana de Silva enlisted to the Sri Lanka Army on 26 June 2000. Having completed his basic military training at Sri Lanka Military Academy, Diyatalawa, he was commissioned in to the Sri Lanka Army and posted to the Special Forces Regiment on 22 June 2002.