Subhas Chandra Bose was never a communist, but was only nationalist. The communists in India had always ridiculed him calling him a bootlicker of Japanese fascists. All Bose's dreams of future India was purely nationalist in nature and the maximum that he could be called was a socialist, but so was Nehru, Jayaprakash Narayan, Ram Manohar Lohia etc. It must not be forgotten that the socialists in India generally disliked the communists and later had alliances with them only as a part of opposition against the domination of the Congress. The Socialist Party of India had no hesitation to embrace Bharatiya Jan Sangh, former form of BJP, to form Janata Party to fight Indira Gandhi. Then the Communist Party of India was an ally of the Congress! What I mean is that Bose leading the Communists was less likely than Nehru leading the Communists.