Department of Tourism Andaman and Nicobar Island also known as Andaman Tourism and Andaman Tourism Development Corporation is doing a great job in promoting tourism in Andaman and Nicobar Islands. The Department also regulates and ensures the safety of tourists in Andaman and Nicobar Islands. The website http://www.andamantourism.gov.in and http://www.andamans.gov.in is primary source of information for all tourism relates websites of Andaman and Nicobar Islands and hosts a lot of information and advisories for tourists. Andaman tourism development corporation keeps the website update by posting updated contents whenever it is available. On arrival at Port Blair on can visit office of Department of Tourism of Andaman and Nicobar Islands and can get books and booklets on various topics related to history, geography and tourism. The office also issues advance tickets for Sound and light show and Jollybouy, but it is suggested to take help of local tour operators as directly standing in queue and buying tickets will waste your precious time while on tour.
The department also provides names of enlisted tour operators and service providers of Andaman and Nicobar Islands although it is not mandatory to register for a service provider, but you can check the names of the service provider to check if he belongs to Andaman Islands.