The Indian Railway Catering and Tourism Corporation offers IRCTC Air as its air ticketing service. Among other airlines, Indigo offers flight bookings from one place to another. Besides, they also offer services tailored to the needs of defence forces exclusively. The purpose behind Indigo defence booking is to make booking easy and travel available for those belonging to the armed forces. The booking becomes simple, and tickets come along with specific benefits and discounts offered to defence personnel.