However, although sharing some critiques against the leadership of Joseph Stalin and the Comintern, the Anushilan Marxists did not embrace Trotskyism. Buddhadeva Bhattacharya writes in 'Origins of the RSP' that the "rejection of Stalinism did not automatically mean for them Anushlian Samiti acceptance of Trotskyism. Incidentally, the leninist conception of international socialist revolution is different from Trotsky's theory of Permanent Revolution which deduces the necessity of world revolution primarily from the impossibility of the numerically inferior proletariat in a semi-feudal and semi-capitalist peasant country like Russia holding power for any length of time and successfully undertaking the task of socialist construction in hand without the proletariat of the advanced countries outside the Soviet Union coming to power through an extension of sociaist revolution in these countries and coming to the aid of the proletariat of the U.S.S.R."