Born on 03 September 1951, he showed interested in politics even during his schooling, at Thopawewa Maha Vidyalaya and Royal College, Polonnaruwa.
He was only 17 when he became secretary of the SLFP youth organization in Polonnaruwa.
A full time member of the party since 1978, he first entered parliament in 1982 and served as a minister from 1994.
He was appointed general secretary of the SLFP in 2001.
He was elected president at the 2015 election.
The president will be the chief guest at the 66th anniversary of his party in Colombo today.
Happy Birthday, Mr. President!