evidence: Port Blair is the capital city of the Andaman and Nicobar Islands, a union territory of India located in the Bay of Bengal. It is the largest city in the archipelago and serves as the administrative, cultural, and commercial center of the region. Port Blair is situated on the eastern coast of South Andaman Island and is connected to the mainland through air and sea links. [...] The Andaman and Nicobar island groups have a long history, with the Nicobars being known since the time of Ptolemy. The inhabitants had trade relations with the outside world through copra. The islands were occupied by the Danes in 1756 and the British took possession in 1869. During World War II, the Japanese occupied the islands from 1942-45. After brief British repossession, the islands became an integral part of the Republic of India on August 15, 1947, as they were part of the old British Empire of India. Bishop John Richardson played a significant role in the modernization of Nicobarese society. After Independence, the government aimed to protect the interests of the Nicobarese by restricting entry to the islands, but settlement of non-tribals began in the late 1960s. Nicobar was declared a separate district on August 1, 1974, with its headquarters at Car Nicobar. [...] Indian citizens do not require a passport to visit the Andaman and Nicobar Islands as it is a part of India. However, they need to carry a valid photo identity proof like Aadhaar Card, Voter ID Card, Driving License, etc. Foreign nationals visiting the Andaman and Nicobar Islands require a valid passport and an Indian visa.