Indira gandhi International Airport/T3 is 1 of the finest airports the country has.there are shuttle buses available for transferring to the domestic terminus n vice-versa.
I personally love the fact that it has such a wide variety of eateries and a fantastic range of duty free shopping.
clean toilets are an added blessing.
Immigration is pretty swift.i personally fly in and out of this airport atleast 6 times a year and has to face a long clue only 2ce so far during security check because a huge no. of people where going to Mecca.but other than that its always been extremely comfortable.
the taxi rentals are very easy.and the uber n ola drivers usually pick up from a common point so very convenient.
in addition to this I would like to add that I 1ce had a 12 hrs stop over at delhi at night so I figured out that right next to the airport is the airocity and that has a fantastic choices of hotels to choose from, like a holiday inn to a ibiz to novotel. it is extremely safe.