This article explores the role played by Hindu temples in Sri Lankan Tamils’ lives in the diaspora in the United Kingdom. It investigates why those temples became not only places for religious worship but also hubs for the expression of Tamil nationalistic political views, while temples in Sri Lanka managed to keep those politics at bay. Departing from studies on religious belonging in the diaspora, I argue for the specificity of the Sri Lankan experience as mingled with the suffering of war and Tamil nationalistic politics, thus suggesting that historical and political processes are key to understand ways of belonging. I use the lens of the capacity of the sovereign deities to unravel the various ways employed by deities to cater to their devotees’ needs. I explore how Hindu deities and refugee devotees in London, while accommodating nationalistic politics, try to establish their own power and claim a form of belonging in the new country. I argue that in the process, both the new sovereign deities and Tamil migrants/refugees not only need each other but also need the deities from home across time and space. [politics, religion, sovereign deity, belonging, diaspora]