Explanations:The question pertains to the founding of the India Party Bolshevik in 1939 in Calcutta, which is now known as Kolkata. The correct answer is ND Mazumdar, who was a significant political figure in West Bengal during the Indian independence movement. Understanding the context of political parties and their founders is crucial for comprehending the political landscape of the time.
ND Mazumdar was a prominent figure in the political arena of West Bengal. He was involved in various political activities and movements that were part of the broader struggle for Indian independence. The India Party Bolshevik, which he founded, was one of the many political parties that emerged during this period, reflecting the diverse political ideologies and movements that were prevalent in the region.
It is important to note that the political landscape of West Bengal during the 1930s and 1940s was complex and dynamic. Various political parties and movements were active, each with its own ideology and objectives. ND Mazumdar's India Party Bolshevik was one such party that sought to address the socio-political issues of the time through its specific political agenda.
Other political figures mentioned in the options, such as MN Roy, CR Das, and Ajit Rai, were also significant in their own right but were not associated with the founding of the India Party Bolshevik. MN Roy was more closely associated with the Communist Party of India, while CR Das was involved with the Swaraj Party. Ajit Rai, on the other hand, was involved with the Communist Party of India.
Understanding the roles and contributions of these political figures is essential for grasping the political history of West Bengal and India during the period leading up to independence. Each of these figures played a part in shaping the political discourse and movements of the time, contributing to the rich tapestry of India's political history.