Janaka Laksiri Waduge was born on 16 April 1965 in Rathmalana to Galwaduge Steephen and Mrs. Karunawathi.
[2] On successfully completing his officer training, he was commissioned on 9 February 1986 and was posted to the Sri Lanka Sinha Regiment.
[5] Laksiri Waduge played a key role in the Humanitarian Operations which took place during the last phase of the Sri Lankan Civil War.
He served as the Deputy General Officer Commanding, 59 Division during the Sri Lanka Army offensive in the Wanni region.
The 59 Division was tasked with fighting its way to recapture the rebel strongholds of Mullaitivu from the Welioya sector.