Gagan Chandra Dey, son of Shrimanta Ram Dey was inhabitant of Shikarpur under Police Station Hathazari in Chittagong of undivided Bengal (now in Bangladesh). He was an active participant in the Bathua Political Dacoity Case of 1934. In the district of Chittagong and within the jurisdiction of Hathazari Police Station, there is a small village called Bathua. On 24 February 1934, in the village Bathua, in the house of Prasanna Kumar Malakar and Tipurrah Malakar, who were very rich persons and favourite to the British, a dacoity was committed by Gagan Chandra Deyand his group members in order to collect fund for revolutionary activities against the British. In this case Gagan Chandra Dey was accompanied by 1) Priyada Ranjan Chakraborty and 2) Jibendra Kumar Das, 3) Mon Mohan Saha, 4) Nagendra Nath Dey, 5) Harihar Dutta, 6) Nirendra Lal Barua, 7) Mahesh Chandra Barua, 8) Saradindra Bhattacharjya, 9) Mokshada Ranjan Chakraborty, 10) Kiriti Mazumdar, 11) Arvind Dey, 12) Manoranjan Chaudhury and 13) Manindra Chandra De. After their arrest, a test identification parade was held in the jail at Chittagong in which all the accused persons other than Kiriti Mazumdar (injured) had to take part. At the time of his arrest his age was 17 years only. He was sentenced by the Special Tribunal at Chittagong on 27 August 1934 to life imprisonment from the Court of Special Tribunal, Chittagong, under section 395 of Indian Penal Code. Gagan Chandra Dey, Manoranjan Chaudhury, Priyada Ranjan Chakraborty , Jibendra Kumar Das, Saradindra Bhattacharjya, Mahesh Chandra Barua, Nirendra Lal Barua, Mahesh Chandra Barua, Nagendra Nath Dey, Harihar Dutta, Mon Mohan Saha, and other revolutionaries of the case were deported to Cellular Jail in Andaman Islands. Gagan Chandra Dey was given Permanent Incarceration No. 279 in Cellular Jail. He was repatriated in 1937-38.