- The resolution of the Non-Cooperation movement which came up at the special Calcutta Congress was considered at the annual session of the Congress held at Nagpur in December 1920 under the presidency of the veteran Congress leader Mr.Vijayraghavachariar,and completely changed the cult of the entire national struggle. - The Rowlatt Bills, the Punjab wrongs, the announcement of the Montague-Chelmsford Reforms had crushed all promises made by the British Government during the war and shattered thehopes of Indians in general and political leaders in particular. - These circumstances created restlessness among the leaders of the Indian National Congress. - The Government's attitude became clearer regarding ng the Punjab wrongs, Khilafatissue, and reforms which worsened the political situations in India. - Soon after the Calcutta session, the rising tide of the non-cooperation movement advanced throughout the country, and the United Provinces became one of the main centers of themovement. - According to Sumit Sarkar, the literary outcrop of Non-Cooperation in Bengal was quite a merger as compared to the days of the Swadeshi agitation. Hence, statement II is correct. - The Nationalists in the 1920 s and '30s had to makedo very often with the old Swadeshi songs. But all this pales into relative insignificance when set beside the unique communal unity (particularly important for Bengal. - In Bengal, Hindus and Muslims were more or less evenly matched in numbers),the effective political leadership provided by C.R. Das and his three young lieutenants (Birendranath Sasmal in Midnapur, J.M. Sengupta in Chittagong, and Subhas Bose in Calcutta).