Tagore passed matriculation in 1917 from Mitra Institution in Kolkata and became graduate with Hon's in Economics from the Presidency College in the year of 1921.
[4] Later, he came to favor Leon Trotsky's theory of "Permanent Revolution" over Joseph Stalin's notion of "Socialism in One Country".
[7] Tagore had turned hostile towards Stalin, possibly as in reaction to his failed bid to gain recognition from the Communist International in 1928.
[9][10] Other founders of the Communist League included Sudhir Dasgupta, Prabhat Sen, Ranjit Majumdar and Arun Banerjee.
[11] After the formation of the Communist League Tagore began touring the Bengal country-side, organizing peasants to struggle for abolishing the zamindari system.
[citation needed] In early 1938 Tagore built a peasants wing, the ‘Bangiyo Pradeshik Kisan Sabha’ (BPKS), separate from the CPI-led Krishak Samiti.
[15] This time he visited Khagen Barbarua at his village in Upper Assam and discussed building the party organization in the province.
[16] After being released from prison in 1948,[10] Tagore was confronted with a sector within the RCPI, led by Pannalal Dasgupta, which insisted on turning the campaign of building panchayats into a general armed insurrection.
In 1933, Tagore was arrested on the charge of plotting to assassinate Hitler, while he was in Munich, Germany and kept in custody at the Gestapo prison.
[16][21] Saumyendranath Tagore married Srimati Hutheesingh from an aristocratic Jain Gujarati Hutheesing family of Ahmedabad.