App-based taxi services in all Delhi airport T3, T1 (1C/1C), T2 are Ola, Uber, and Meru. For Ola and Uber you must download their app, you can make payments through your linked Paytm account, credit or debit card, or Ola money and Cash as per your convenience. It is advised that one should book their ride as soon as passenger off-board the plane as sometimes due to heavy passenger load it takes time for your cab to reach the airport or in assigning the cab for you, there is also surge pricing during peak hours when passenger load is very high. Uber has recently started long distance taxi services as well where travelers can higher cab for the entire day or to travel outside Delhi City.
To catch your OLA or UBER ride passenger needs to come to the extreme outer road from the arrival terminal at T3 and at T1 there is Cab pickup zone on the left side of the arrival terminal.
Taxi for Hiring at airport
New Delhi IGI T3, T1, and T2 terminals also offer current booking facilities for those who do not wish to wait for cabs and get an immediate ride and if a passenger requires high-end premium luxury rides they have Wti cabs, Meru, Carzonrent and taxioncall. Meru has its zones in for booking cabs instantly. Besides this, they have Airport taxi services run by Airport authority and Delhi Taxi union. All these taxi services connect Delhi airport to suburbs in Delhi 24/7.