There are three ways to travel to Andaman Nicobar Islands and that is by air, sea, and the latest way by train.
By Air
The Veer Savarkar International Airport in Port Blair is the only airport in Andaman Nicobar Islands. There are direct flights from Kolkata, Chennai, Hyderabad, Delhi, Mumbai, and Vishakhapatnam. Flights from other cities in India may require a connecting flight.
By Sea
There are ferries and ships that sail to Andaman Nicobar Islands from Kolkata, Chennai, and Vishakhapatnam. The journey by ferry takes about 3 days, while the journey by ship takes about 5 days.
Once you arrive in Andaman Nicobar Islands, you can get around by car, bus, or taxi. There are also ferries that connect the different islands.
By Train
This new way of traveling by train will have a new route that will connect Diglipur and Port Blair and will be a 240 km-long railway line with stations and bridges located by the coast. So overall the train journey is something more of a scenic type. And the train journey to Andaman will save you around 3 hours of travel time.