Port Blair is a notified port by the Indian government and is classified as an "intermediate port". It serves as the main port of call for services from the mainland to the union territory and is also the principal hub for shipping in the islands. The Directorate of Shipping Services has a fleet of 80 ships based here which provide four kinds of service:
1. Mainland to Island service
2. Inter-island service
3. Foreshore service
4. Harbour ferry services.
Meanwhile, it is understood that the Directorate of Shipping Services Andaman and Nocobar administration plans to lease different categories of passenger vessels from reputed ship owners or shipping agents.The categories consist of harbour craft, passenger-cum-vehicle ferry and cruise passenger vessel.