 He was the Secretary to the Kandyan deputation on constitutional reforms that was sent to England.Aluwihare joined the Ceylon Civil Service, where he served as Assistant Director of Agriculture, Assistant Registrar Cooperative Societies in 1922, Acting Police Magistrate, Dandagamuwa in 1923, Police Magistrate in Point Pedro and Panadura in 1924, Second Landing Surveyor, HM Customs in 1926, Commissioner of Requests, Additional District Judge, Additional Police Magistrate, Kandy, Government Agent of Kegalle and Settlement Officer in 1929.In 1931 he was appointed District Judge of Nuwara Eliya.