The new terminal 3 (T3) at Indira Gandhi International Airport (IGI) in Delhi, India, is set to open on 3 July, with a capacity of 34 million passengers per year.
International airlines and domestic carriers such as Air India, Jet Airways and Kingfisher will begin operations from the new terminal, according to the Times of India.
With major installation work now complete, the finishing touches are currently being made to the new terminal before it opens.
The basic trials at T3 were completed in January 2010, followed by advanced trials in April 2010, which will continue until June 2010.
Air India will be the first airline to move into the terminal in June.
Construction of the 5.5 million square feet T3 began in February 2007 and was expected to be completed within 37 months.