[2][3] He however resigned from parliament to take up the role of Uva Chief Minister, after the position was vacated by the incumbent, Harin Fernando, who was also elected to parliament at the 2015 parliamentary elections representing Badulla.
[4][5][6] In January 2018 Dissanyake stood down from his position as Provincial Education Minister whilst an investigation by the Human Rights Commission of Sri Lanka was being undertaken.
[7] The investigation related to an incident were Dissanyake allegedly demeaned a local school principal.
[8] In April he was controversially re-instated back as the Education Minister by the Governor of Uva Province Marappullige Jayasinghe.
[9] At the 16th parliamentary elections, held on 5 August 2020, Dassanayake ran again for a seat from the Badulla electorate, representing the Sri Lanka Podujana Peramuna (SLPP).