Basawon Singh played a highly remarkable and inspiring role in the historic Quit India Movement. It is worthy to note that on 12 April 1942, he addressed the Palamau District Political Conference attended by thousands of people including a large number of tribal people mostly consisting of Kherwars and Kisans. In the next week he delivered a highly inspiring speech with Reasat Karim of Dehri in the conference of Socialist group of Kisan Sabha held on 18 and 19 April 1942 at Patepur in Muzaffarpur which was presided over by Abdul Hayat Chand of Patna. On the eve of the August Rebellion, Singh was blacklisted in Group "A" as Labour, Socialist and Terrorist Leader, classification I with Deep Narayan Singh, Rambriksh Benipuri, Narayan Prasad Verma, Bir Chand Patel and other leaders of Muzaffarpur District by the colonial government of Bihar Province. He went underground and organised his guerilla band of freedom fighters in the dense forest of Palamau. The fiery activities of this socialist leader encouraged the escape of six socialist leaders, namely Shukla, Narayan, Pandit Ramnandan Mishra, Suraj Narayan Singh, Shaligram Singh, Gulab Chand Gupta and Gulali Sonar from Hazaribagh Central Jail on Diwali night on 9 November 1942. Narayan was willing to meet with Singh to spell out the programme to overthrow the British Raj through armed struggle.