Communism and Nationalism in Colonial India, 1939-45 is an incisive and. original contribution to our understanding of the Communist Party of India`s approach. towards the Indian national movement and British colonialism from 1939 to 1945. Based on extensive use of archival material, private papers and rare documents, . the book is a critique of both the official CPI line as well as its detractors`. opinions about the Party`s role in the said period. It analyses in detail both. points of view with regard to why the CPI failed to expose what it termed as. the `betrayal` of the `bourgeois nationa.