Rameswaram is a municipality in the Ramanathapuram district of the Indian state of Tamil Nadu. It is on Pamban Island separated from mainland India by the Pamban channel and is about 40 kilometres from Mannar Island, Sri Lanka. From Wikipedia
Inspired by Wings of Fire the film charts Kalam’s journey from Rameswaram to Rashtrapati Bhavan under the Abhishek Agarwal Arts banner alongside T-Series.