Here is a link to the airport. The Domestic and International terminals are eight kilometers apart. The single International terminal is designated Terminal II and the three domestic terminals are called Terminal 1A,  1B and Domestic Arrival Terminal. The airport was called Palam before being renamed in 1986. This was the occasion of the opening of the International terminal. The Palam name is still commonly used to refer to the domestic terminals. More information on the website.

Indira Gandhi International Airport ( DEL ) New Delhi