Intelligence summaries initially did not believe the INA to be a substantial force or have any purpose more than propaganda and espionage purposes. However, by the end of 1942, they had become aware of trained Indian espionage agents (of the INAs Special services group) who had infiltrated into India for the purpose of collecting intelligence, subversion of the army and the subversion of civilian loyalty. This information was derived to a large extent from some of the agents themselves who gave themselves up to the authorities after reaching India. However, the intelligence was also aware at this point of misinformation being spread about the INA itself by the agents who concealed their purpose and professed to pass on intelligence from local knowledge. More troubling for the military command were the activities of the INA agents in the battlefields of India's eastern frontier in Burma.