Pulin Behari Seal was born to Ganga Das Seal of Sadarghat, Chittagong, Bengal, in 1899. He came to Britain for higher education, attending the University of Cambridge where he studied mathematics. He quickly showed himself dedicated to the struggle for Indian independence, first attracting the attention of the authorities in 1922 when campaigning for the Lascar Welfare League.

After graduating from Cambridge, Seal sought employment without much success. He offered his services to the Labour MP George Lansbury, and applied for a research scholarship at the London School of Economics, proposing to write a thesis on the history of Ireland. His return to India in 1924 could well have been precipitated by a lack of funds. A few months later he was back in London as representative of the Swaraj Party and foreign correspondent of the Calcutta-based newspaper Forward (edited by C. R. Das), which later became New Forward and then Liberty.

On his return to England, Seal established himself firmly as a radical political activist as well as a journalist. In 1925, he debated successfully against Michael O’Dwyer on the subject of self-government in India at the University of Leeds Student Union. He was an active member of the London branch of the Indian National Congress, and highly critical of the Simon Commission Report, as well as the Round Table Conferences – both for being ‘anti-Indian’. In 1926, he founded the Oriental Press Service, a service for supplying Indian news to British and US publications and British news to Indian publications. This enabled him to disseminate information (and propaganda) between the two countries, potentially helping to forge links between the British Left and Indian activists. For example, in 1928, he sent photographs of Indian mill strikers and their families living in impoverished conditions for publication in one of the outlets of the Communist Party of Great Britain. Critical of the Labour Party (he claimed their attitude to India was no better than that of the Conservatives), as well as of less radical Indian organizations, Seal aligned himself more closely with the Communist Party, associating with Shapurji Saklatvala in particular. Yet evidence suggests his relationship with the CPGB also had its tensions. With other Indian activists, including Surat Alley and Sasadhar Sinha, he organized a committee to coordinate Indian political groups, the Indian National Committee, and held political meetings at the Café Indien (later known as the India and Burma Restaurant) in Leicester Square. He was also a leader, along with Subhas Chandra Bose’s nephew, Amiya Nath Bose, of the Committee of Indian Congressmen.

Seal was considered an ‘extremist’ and a deeply suspect character by the British Government, particularly because of his support of Subhas Chandra Bose and alleged pro-Axis leanings during the Second World War. He was on the list of people who should be arrested in the event of invasion – and was threatened with arrest in 1942 when the police discovered, in the possession of one Marie Brett Perring, documents reportedly written by Seal that ‘glorified’ Subhas Chandra Bose and alleged widespread disaffection in the Indian Army. In 1946, when Seal was back in India, a note was issued to all ports indicating that his arrival into Britain should be reported immediately (L/PJ/12/186, p. 145). He was also debarred from attending functions held under the auspices of the Office of the High Commission for India.

Seal travelled to and from Europe on numerous occasions, and worked as the diplomatic correspondent in England for the Independent French Agency during the early 1940s. He was also a writer, securing a contract deal with the publishing firm Sidgwick & Jackson for ‘An Indian Who’s Who’. In addition, he founded two travel companies: Orientourist Ltd and later the East-West Travel Company which organized luxury tours to India. Despite his obvious energy and ability to turn his hand to a range of tasks, he was often beset by financial difficulties, moving frequently between different flats or hotel rooms, with his wife Judith (Jessie) Stuart and their three children. In 1941, his failure to pay rates led to his arrest and the threat of imprisonment if the money was not forthcoming within seven days. Fortunately, one of Seal’s many connections – possibly one S. E. Runganathan, advisor to the secretary of state for India – paid his debt.