Delhi is a capital.
Delhi ( [ ˈdɛli ] , [ d̪ɪlliː ] Dilli ) , officially the National Capital Territory of Delhi or NCT , is a city and a union territory of India . Through most of its history , Delhi has served as a capital of various kingdoms and empires . New Delhi ( [ njuː_ˈdɛli ] ) is the capital of India and one of Delhi city 's 11 districts . The new capital was inaugurated on 13 February 1931 , by Viceroy and Governor-General of India Lord Irwin .