Frequently Asked Questions about vacation to Andaman Islands by MyAndaman
+Does it require passport or any kind of permit/visa to visit Andaman and Nicobar Islands?
Andaman and Nicobar Islands is very much part of India. You can travel to Andaman group of Islands as you are travelling to your neighbouring states in India. But you ned special permission from DC to visit Nicobar group of Islands.
Indian Citizens: No, No passport and no permit/visa or any kind of permission is required to visit Andaman Islands.
Non-Indian Citizen: Yes, a passport and a valid visa is required. Also upon reaching Port Blair airport you need to get emigration permit which is valid for one month.
Further read
instruction for foreign nationals.