Andaman & Nicobar at a Glance: Archipelago Island. Hemant Pratap Singh. The Andaman and Nicobar Islands is one of the seven union territories of India, are a group of islands at the juncture of the Bay of Bengal and Andaman Sea. It comprises two island groups, the Andaman Islands and the Nicobar Islands, separated by the 10°N parallel. The territory's capital is the Andamanese town of Port Blair.
http://www.jagranjosh.com/general-knowledge/andaman-nicobar-at-a-glance-archipelago-island-1453370973-1
The Andaman and Nicobar Islands (/ˈændəmən/ & /ˈnɪkəbɑːr/; local ), one of the seven union territories of India, are a group of islands at the juncture of the Bay of Bengal and Andaman Sea. The territory is 150 km (93 mi) north of Aceh in Indonesia and separated from Thailand and Myanmar (Burma) by the Andaman Sea.
https://en.wikipedia.org/wiki/Andaman_%26_Nicobar
Part of the Andaman and Nicobar Islands, an Indian archipelago seen as critical in countering China’s growing influence in the area. Japan has proposed building a power plant on one island. Credit Gautam Singh/Associated Press.
https://www.nytimes.com/2016/03/12/world/asia/india-japan-china-andaman-nicobar-islands.html
If anything Nehru did for Andaman and Nicobar islands, it was not securing it, but, compromising its as well as India's maritime security.
https://www.quora.com/What-was-Nehrus-role-in-securing-Andaman-and-Nicobar-archipelago-after-the-British-left-India
The territory's capital is the Andamanese town of Port Blair. The total land area of these islands is approximately 8,249 km2 (3,185 sq mi). The capital of Nicobar Islands is Car Nicobar. The islands host the Andaman and Nicobar Command, the only tri-service geographical command of the Indian Armed Forces.
https://en.wikipedia.org/wiki/Andaman_%26_Nicobar
Andaman Islands. The Andaman Islands form an archipelago in the Bay of Bengal between India, to the west, and Myanmar, to the north and east. Most are part of the Andaman and Nicobar Islands Union Territory of India, while a small number in the north of the archipelago, including the Coco Islands, belong to Myanmar. The Andaman Islands are home to the Sentinelese, who have had no contact with any other people.
https://en.wikipedia.org/wiki/Andaman_Islands
And yes, Andaman and Nicobar islands are India's part, right from the time of great rulers of South e.g. Cholas. With help of Japan, Neta Ji Subash Chandra Bose liberated this land and hoisted the national flag on 30th December 1943. Netaji renamed Andaman as Saheed and Nicobar as Swaraj dweep.
https://www.quora.com/What-was-Nehrus-role-in-securing-Andaman-and-Nicobar-archipelago-after-the-British-left-India
The Andaman Islands are a group of archipelagic islands located in the Bay of Bengal between India to the west and Burma to the north and east. Of the 572 islands, islets and rocks that constitute the Andaman and Nicobar chain, as little as 36 are inhabited. Ritchie’s Archipelago is the name given to the 9 emerald islands east of South Andaman. Of these, Havelock Island is the largest and the most popular holiday destination.
http://sportsfishinginandaman.com/
PORT BLAIR, India — India and Japan are in talks to collaborate on upgrading civilian infrastructure in the Andaman and Nicobar Islands, an Indian archipelago seen as a critical asset to counter China’s efforts to expand its maritime reach into the Indian Ocean.
https://www.nytimes.com/2016/03/12/world/asia/india-japan-china-andaman-nicobar-islands.html
It comprises two island groups, the Andaman Islands and the Nicobar Islands, separated by the 10°N parallel, with the Andamans to the north of this latitude, and the Nicobars to the south (or by 179 km). The Andaman Sea lies to the east and the Bay of Bengal to the west.
https://en.wikipedia.org/wiki/Andaman_%26_Nicobar
where is the andaman and nicobar archipelago
The Andaman and Nicobar archipelago is in the Bay of Bengal between India, to the west, and Myanmar, to the north and east. The Andaman and Nicobar Islands form an archipelago in the Bay of Bengal between India, to the west, and Myanmar, to the north and east.