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Commander of the Sri Lankan Army General (Sri Lanka) Srilal Weerasooriya ශ්‍රීලාල් වීරසූරිය RWP, RSP, VSV, USP
Native name	ශ්‍රීලාල් වීරසූරිය
Birth name	Chandrika Srilal Weerasooriya
Nickname(s)	Lal
Born	(1943-12-22) 22 December 1943 (age 81) Karawanella, Ceylon
Allegiance	Sri Lanka
Service / branch	Sri Lanka Army
Years of service	1963 - 2000
Rank	General
Service number	O/50417
Unit	Sri Lanka Artillery
Wars/Battles	1971 JVP Insurrection 1987–1989 JVP insurrection Eelam War I-III Riviresa Sathjaya I-III Jayasikuru Leap Forward
Awards	Rana Wickrama Padakkama Rana Sura Padakkama Vishista Seva Vibhushanaya Uttama Seva Padakkama Sitara-e-Pakistan
Alma mater	S. Thomas' College, Mt Lavinia Pakistan Military Academy National Defense College
Spouse(s)	Dilhani Weerasooriya
Relations	Tilak Weerasooriya David Paynter Arnolis Weerasooriya
Other work	Sri Lankan High Commissioner to Pakistan, Tajikistan and Kyrgyzstan (2000-2007)

General Chandrika Srilal Weerasooriya (Sinhala :චන්ද්‍රිකා ශ්‍රීලාල් වීරසූරිය) or 'C.S. Weerasooriya', RWP, RSP, VSV, USP is a retired Sri Lankan Army General. He was the 15th Commander of the Sri Lankan Army (1998-2000) and a former Sri Lankan High Commissioner to Pakistan, Tajikistan and Kyrgyzstan (2000-2007) ^[1]

C.S. Weerasooriya was born in Karawanella, Ceylon, on 22 December 1943, to Charles Richard Percival Weerasooriya and his wife Harriet Freda. C.S. Weerasooriya had his primary and secondary education at S. Thomas' College, Mount Lavinia. He is the nephew of David Paynter and the grand nephew of Arnolis Weerasooriya of the Weerasooriya family of Dodanduwa, Hikkaduwa.^[2][3][4]

C.S. Weerasooriya was enlisted into the Ceylon Army on 09 May 1963 as an Officer Cadet. He was a member of the first batch that was trained at the Pakistan Military Academy from 1963 to 1965.

He was commissioned on 11 September 1965 into the 4th Regiment Ceylon Artillery.

Over the years, C.S. Weerasooriya followed the Regimental Officers Survey Course, Long Gunnery Staff Course, and the Senior Command (Artillery) Course, all of these in India.

On 08 March 1985, he was promoted to the rank of Lieutenant Colonel, subsequently assuming the role of Commanding Officer of the 4th Field Artillery Regiment from March 1985 to March 1987. His dedication and competence led to his promotion to Colonel on 01 October 1988 and Brigadier on 01 May 1989.^[5] In 1994, C.S. Weerasooriya followed the National Defense College Course in New Delhi, India, subsequent to which he was promoted to the rank of Major General.

During his military career, apart from regimental appointments, he held the appointment of Military Assistant (MA) to the Commander, Gen Denis Perera, in 1981. Thereafter, he held the senior appointments of Regimental Commander Artillery, Commandant Army Training Centre Diyatalawa, Commander 22 Brigade and Coordinating Officer Trincomalee, Commander 12 Brigade Colombo, Commander 1 Brigade and Coordinating Officer Ampara District, Commander 5 Brigade Group Mannar and Coordinating Officer Mannar District, Commander Artillery Brigade, Director Operations Army Headquarters (D Ops), General Officer Commanding Task Force 1 and Coordinator in Chief Jaffna District, Overall Operations Commander - Joint Operations Headquarters - Vuvuniya, Deputy Chief of Staff, and Chief of Staff.^[6]

On 16 December 1998 C.S. Weerasooriya was appointed Commander of the Sri Lanka Army with the rank of Lieutenant General. He held this position until his retirement on 24 August 2000. Upon his retirement, he was promoted to the rank of General. C.S. Weerasooriya was succeeded by L. P. Balagalle.^{[7][8][9][10]}

C.S. Weerasooriya has received some of the highest awards in the Sri Lankan armed forces, which include the Rana Wickrama Padakkama, Rana Sura Padakkama, Vishista Seva Vibhushanaya, and the Uttama Seva Padakkama. He was awarded the Sitara-e-Pakistan (Star of Pakistan) by the Government of Pakistan for services to Pakistan during his tenure as High Commissioner.^[8][9][10]

In 2000 he was appointed as Sri Lankan High Commissioner to Pakistan and served in this capacity for six years. Pakistan signed its first ever Free Trade Agreement, during C.S. Weerasooriya's tenure as High Commissioner, with Sri Lanka. His close friendship with former Chief of Army Staff and President, Pervez Musharraf, resulted in much support being given by Pakistan towards Sri Lanka's war effort, during C.S. Weerasooriya's tenure as High Commissioner.

Upon his return to Sri Lanka, C.S. Weerasooriya served as an Independent Non-executive Director of Ceylinco Life PLC from 2010 to 2022^[11].^{[citation needed]} and as the International President of the Association of Military Christian Fellowships (AMCF), from 2012 to 2022.^[12][13][14] He was the first South Asian to hold this position.