Indian nationals needs no permit to visit the Andamans. However, visiting to tribal reserved areas in the Andaman and Nicobar Islands is prohibited.
ENTRY FORMALITIES FOR FOREIGNERS
All foreign nationals required a permit (RAP - Restricted Area Permit) to visit the Andaman Nicobar Islands, which is easily available on arrival at Port Blair by flight or ship from the Immigration Authorities for 30 days subject to availability of valid visa. This is extendable for another 15 days in certain cases with permission and the delegated authority to extend permission is the Superintendent of Police, FRO/CID, Port Blair.
The Restricted Area Permit can also be obtained from the Indian Missions overseas and also from the Foreigners Registration Offices at New Delhi, Mumbai, Chennai and Kolkata and from the Immigration Authorities at the Airport of New Delhi, Mumbai, Chennai and Kolkata.