[1][2] Her parents, who had fled the Sri Lankan Civil War, were assisted by Labour Party MP Jeremy Corbyn in their immigration case.

[5][18] During the 2015 general election campaign she and the Liberal Democrat candidate were attacked by Dharma Sewa Purvapaksha, an organisation founded by Conservative Party member Mukesh Naker, for their parties’ support in 2013 for legislation to outlaw caste discrimination.

[11] In May 2024 Kumaran was selected to be the Labour Party's candidate in the newly created constituency of Stratford and Bow.

[29] In December 2024, she was also appointed by the Prime Minister to the United Kingdom delegation to the UK-EU Parliamentary Partnership Assembly.

[33][34] She has spoken publicly about the impact of religiously divisive political campaigning on her family during her early career.