Satyen Bardhan, Fauja Singh and Abdul Kader were sent as advanced party in submarine. Satyen Bardhan had landed in Kathiawar coast, and Fauja Singh in Chattagram. A group of Madras Coastal Battalion had come in contact with Satyen Bardhan in Madras jail. They were inspired by the message of Subhas Chandra Bose from Berlin. Man Kumar Basu Thakur and his associates Havildar Durgadas Roy Chowdhury, Jamadar Nanda Kumar Dey, Havildar Sunil Mukherjee, Naik Phani Bhushan Chakrabarty, Havildar Niranjan Barma, and Gunner Kalipada Aich were caught by the British Intelligence and were executed in September 27, 1943. This was the first instance of organized rebellion in British Indian Army. Mankumar Basu Thakur and his associates had covertly tried to influence and inspire rebellion in the ranks and file but were apprehended by the British intelligence, possibly by some treachery. Durgadas Roy Chowdhury wrote an open letter in jail as to why they were embracing martyrdom than serving British Army and Navy. They cheerfully embraced death while shouting the slogans of Vande Mataram and Jai Hind.