Itsknown as K?l?P?n? and was a colonial prison in the Andaman and Nicobar Islands. It was the harshest confinement units of British Rule in India with inmates being subjected to heinous and torturous crimes. The design of jail is such that no prisoner ever was able to communicate to another prisoner and was always in solitary confinement. Nowdays it serves as a national memorial monument and is one the leading hotspots on the Andamans.