The Soulbury constitution ushered in dominion status, with independence proclaimed on 4 February 1948. D. S. Senanayake became the first Prime Minister of Ceylon. Prominent Tamil leaders including Ponnambalam and Arunachalam Mahadeva joined his cabinet. The British Royal Navy remained stationed at Trincomalee until 1956. A countrywide popular demonstration against withdrawal of the rice rations resulted in the resignation of prime minister Dudley Senanayake.