Tapan Misra is an Indian scientist who was the director of Space Applications Centre, Indian Space Research Organisation (ISRO). He was involved in design for the development of C-band Synthetic Aperture Radar (SAR) of the RISAT-1. He wrote an algorithm for real-time processing of SAR data during his stint as a guest scientist in the German Aerospace Agency in 1990. He was also associated with development of the multi-frequency scanning microwave radiometer instrument of Oceansat-1 and Scanning Scatterometer of Oceansat-2. He served as the deputy director of microwave remote sensing area of Space Applications Centre (SAC) before being appointed as the director in February 2015.  In January 2021, Misra claimed through a Facebook post that he was poisoned with arsenic trioxide on 23 May 2017, when he was in a promotional interview at ISRO headquarters in Bengaluru. He also added that the attack might have been carried out by people who have feared the loss of contract from the Indian government due to low cost technology of ISRO.