Andaman and Nicobar Islands: The Andaman and Nicobar Islands is a union territory of India consisting of 572 islands, of which 37 are inhabited, at the junction of the Bay of Bengal and the Andaman Sea. The territory is about 150 km (93 mi) north of Aceh in Indonesia and separated from Thailand and Myanmar by the Andaman Sea. It comprises two island groups, the Andaman Islands (partly) and the Nicobar Islands, separated by the 150 km wide Ten Degree Channel (on the 10°N parallel), with the Andaman islands to the north of this latitude, and the Nicobar islands to the south (or by 179 km). The Andaman Sea lies to the east and the Bay of Bengal to the west. The island chains are thought to be a submerged extension of the Arakan Mountains. The territory’s capital is the city of Port Blair. The total land area of the islands is approximately 8,249 km2 (3,185 sq mi). The territory is divided into three districts: the Nicobar District with Car Nicobar as its capital, the South Andaman district with Port Blair as its capital, and the North and Middle Andaman district with Mayabunder as its capital.
- Nicobar: Nicobar district is one of three districtsin the Indian union territory of Andaman and Nicobar Islands. The district’s administrative territory encompasses all of the Nicobar Islands, which are located in the Indian Ocean, between the Bay of Bengal and the Andaman Sea. The headquarters of the district is the village of Malacca, located on the island of Car Nicobar.
- North and Middle Andaman: North and Middle Andaman district is one of the 3 districts of the Indian Union Territory of Andaman and Nicobar Islands located in the Bay of Bengal. Mayabunder town is the district headquarters. The area covered by this district is 3251.85 km2.The district comprises 3 tehsils, Diglipur, Mayabunder and Rangat. According to the 2011 census North and Middle Andaman district has a population of 105,539.This gives it a ranking of 614th in India (out of a total of 640).The district has a population density of 32 inhabitants per square kilometer (83/sq mi) .Its population growth rate over the decade 2001-2011 was -0.07%.North And Middle Andaman has a sex ratio of 925 females for every 1000 males, and a literacy rate of 84.25%.
- South Andaman: District of South Andamans is one of the three Districts of Andaman & Nicobar Islands is located in between longitude E 92° to E 94°’ and latitude N 6°’ to N 14°’ in the Bay of Bengal Region . The Total Area of South Andamans District is 2980 Sq.Km . There are four primitive tribes in the South Andamans District and they have been recognised as belonging to the Negrito stock, namely Onges, Jarawas, Great Andamanese and Sentinalese besides Nicobarese have been settled at Harminder Bay. The District of South Andaman has three tehsils namely “Port Blair”,” Ferrargunj”,”Little Andaman”. The Geographical, educational, economical and few other details are given below.