 With Shibnath Bannerjee he worked very hard to form the railway men's union from 1936 onwards.He unionized the workers of Japla, Baulia, and Dalmianagar in Shahabad; Gaya, Jamshedpur and Kanda; of the coalfields of Jharia, Hazaribagh, Kumardhubi; workers of Patna City, Jamalpur; the sugar factory workers of Harinagar and Marhawra; the workers of Talcher and Rajgangpur in Orissa; and Satna in the Central Provinces.Subsequent to the Second World War, the trade union movement gained urgency and strength on account of the untiring efforts of Basawon Singh.