Andaman and Nicobar islands are a part of the Indian subcontinent. The group of islands has an airport at Port Blair which is well connected with major cities in India. It is also possible to reach Andaman and Nicobar by sea via Kolkata, Chennai and Visakhapatnam.
Andaman's airport (Veer Savarkar International Airport) is at Port Blair, which is well connected to many cities in India.
One can take a ship from Kolkata, Chennai or Visakhapatnam to reach Port Blair. It takes almost 4-5 days to reach the islands, via the sea, depending on the weather conditions.