I have traveled many times in a flight for domestic and international routes in the past but this time (a month ago travel) air ticket booking done via online for an Indigo flight as a change to experience its service on domestic route. This airline is growing in a standard phase since a decade or so. Whatsoever, the successful airline depend on few things and one of them is discipline. The second one is, polite service which everyone can experience on the ground and on-board thus no issue over here. This airline is very careful on some of these process which enriches their growth too.
Passenger boarding the flight
This airline (Indigo) also helps to book the air ticket via online from various sources like their own website or associated website like cleartrip and on.