The Cellular Jail, also known as Kala Pani (Black Water), is a colonial prison located in Port Blair, the capital of the Andaman and Nicobar Islands. Built by the British between 1896 and 1906, this historic structure served as a prison for political prisoners during India's freedom struggle.

The jail was designed with a unique cellular architecture, where each cell was isolated from others to prevent communication between prisoners. The seven wings of the jail radiate from a central tower, resembling the spokes of a wheel, making it nearly impossible for prisoners to escape.

Today, the Cellular Jail stands as a national memorial and museum, preserving the memory of the freedom fighters who were imprisoned here. The jail complex includes a museum, photo gallery, and the famous light and sound show that narrates the history of the freedom movement.

The light and sound show, held in the evening, is a must-watch experience that brings the history of the jail to life through dramatic narration, lighting effects, and sound. The show recounts the stories of famous freedom fighters like Veer Savarkar, Batukeshwar Dutt, and others who were imprisoned here.

Visitors can explore the various cells, the central tower, and the gallows where many freedom fighters were executed. The museum houses artifacts, photographs, and documents related to the freedom struggle and the history of the Andaman Islands.

The jail complex also includes a memorial dedicated to the martyrs, where visitors can pay their respects to the brave souls who sacrificed their lives for India's independence.