I have visited this airport 1 month ago to go from delhi to dubai and I have wonderfull experience as this airport provide full of service and security system .
Unique airport that serve city of New delhi is located palm 16km from New delhi .
It is 25th busisiest airport of the world.it has two full operational terminals.
T¹ only operates low cost carriers and terminal T³ operates all international flights. .It is the biggest airport of the India in terms of passenger traffic.