Soon after the Sirisena won the election Premachandra was appointed as a member of the central committee of the Sri Lanka Freedom Party.
[6] In the 2015 general election, she joined the United National Party list in Colombo in protest against Mahinda Rajapaksa having been granted a nomination for the UPFA.
[7] On 18 October 2017 she was appointed as United National Party organiser for Ratmalana by Prime Minister Ranil Wickramasinghe.
On 21 December 2015, Premachandra was alleged to have kidnapped an aspiring model and cricketer Cheruka Weerakoon from a shop by her bodyguards and threatened to take pictures of him without his sunglasses.
Premachandra announced a press conference and denied any knowledge of this incident, claiming that she was at a function at the Colombo Municipal Council where President Maithreepala Sirisena was also in attendance.