An important piece of legislation, enacted in 1948, and modified in 1949, was the Indian Citizenship act, which limited citizenship to Indian workers who had at least 10 years of residence in the country This was similar to the requirement which was then current in most European countries. Although Senanayake had consistently supported their citizenship under less strict conditions as early as 1923, and as late as 1941 in the Indo-Ceylon talks,See Senator Natesan's speech, Hansard 1948 this change of attitude was a reaction to the increasing agitation of the Marxist trade-unionists whose power was misjudged by the colonial administration as well as most politicians of that era. Thus Senanayake was supported by many Tamil leaders including Ponnambalam, and constitutionalists like Dr. Ivor Jennings, in regard to the Indian citizenship act. The Soulbury commission had also recommended a "status quo" with regard to Indian workers. However, this was criticized by Senator Natesan, S. J. V. Chelvanayagam and followers who represented the emerging Tamil-nationalist fringe.
