About Player
Theekshana grew up with his grandmother and hailed from Siddhartha Vidyalaya, Sedawatta. Two of the old boys from St. Benedict's College, Colombo requested the guardian of Theekshana to switch their location to Kotahena in order to make Theekshana play school cricket representing St. Benedict's College.
The Cricket Wing of St. Benedict's volunteered to look after his finances in the first two years and later the St. Benedict's College granted him a scholarship offer. He repaid the faith by winning the All Island Best All Rounder Award during his final year at St. Benedict's College.
Theekshana's strong performances in the SLC Invitational T20 league, he was named in Sri Lanka's One Day International (ODI) and Twenty20 International (T20I) squads for their series against South Africa. He made his ODI debut on 7 September 2021, for Sri Lanka against South Africa. In the match, he took a wicket with his first ball in ODI cricket. He took 4 wickets for 37 runs,helping Sri Lanka win the series 2–1. He became the first Sri Lankan international cricketer to be born in the 21st century. He made his T20I debut on 10 September 2021, also for Sri Lanka against South Africa. Later the same month, Theekshana was named in Sri Lanka's squad for the 2021 ICC Men's T20 World Cup. He ended the tournament as second highest wicket taker for Sri Lanka with eight scalps.
In June 2022, he achieved his career best eighth ranking in ICC Men's T20I Player Rankings for bowlers.