The present study dilates upon the activities of Indian revolutionaries in East Asia after the Russo-Japanese war and its culmination in the formation of the INA with Japanese help. Based on the critical examination of the sources in India and abroad the author has provided a detailed analysis of the dramatic events after the Pacific War to the formation INA by Captain Mohan Singh, his distrust of the Japanese intentions and ultimate clash leading to his internment in Sumatra, on the formation of the Provisional Government and heroic exploits of the INA under the dynamic leadership of Subhas Chandra Bose. Although the INA was defeated after the fall of Japan and failed in its goal to oust the British, nevertheless it succeeded in generating patriotic spirit among the people. Even those people who had all along abhorred the cult of non-violence, sympathized with the INA officers when they were put on trail, which made it difficult fort the British to continue.