During the Second World War, the formation of the Indian National Army (INA) was an epoch-making event in the context of Indian political activities overseas. The INA as an organization was formed by a group of Indians in Singapore in 1942 with the encouragement of Japan. Their objective was to fight against British rule in India. Within a few months of the Japanese conquest of Malaya and Singapore, the INA was formed out of the Indian Prisoners of War (PoWs) who had surrendered to the Japanese. Within no time, the INA was able to garner the widespread support of the civilian Indian community based in Southeast Asia. In this paper, I look at the propaganda of the INA in Japanese-occupied East and Southeast Asia. Throughout the war, the INA was sustained by the Japanese regime, politically, financially and ideologically. The INA in turn liberally used Japanese motifs and ideas to support its claim of representing the voice of Indians in the Indian liberation struggle. For example, the INA in their propaganda increasingly relied on the Japanese versions of the concepts of Pan-Asianism and Greater East Asia Co-Prosperity Sphere to address its Indian audience. In this paper I examine the INA's use and adaptation of Japanese ideas to cater to an Indian audience. I specifically look at some of the propaganda publications of the INA in Southeast Asia and highlight the preponderance of Japanese ideas in these publications and the implications of this phenomenon.