The Cellular Jail was a colonial prison in the Andaman and Nicobar Islands, India. The British government exiled political prisoners to the remote archipelago that came to be known as Kalapani. Many freedom fighters, including Veer Savarkar, after whom the soon-to-be international airport is named, were imprisoned here during the Independence struggle .
Cellular Jail is a three-storeyed structure with seven wings, of which three remain, radiating from a central watch tower, shaped like spokes of a wheel. The architecture of Cellular Jail was conceptualized to completely isolate individual inmates. The unique design of radiating wings allowed a single guard in the central tower to keep watch on all the prisoners without being seen himself. The Cellular Jail was considered second only to capital punishment.