For Andaman and Nicobar Islands: by air and sea
The island can be reached by air easily and quickly. Port Blair, which is the capital of the Andaman and Nicobar Islands, connects the mainland of India through the airport with the nearest airport located within the city. Therefore, Veer Savarkar is the International Airport, which is a commercial airport of this place.
Reach Andama... https://www.andamanlove.com/how-to-reach-andaman-and-nicobar-islands/