No one likes to stand in queues at the airport... now here's one way you can use technology to reduce the time you spend in airport queues by 40% If you are taking a flight out of Delhi, Varanasi or Bengaluru... your face can now be your boarding pass. The DigiYatra app can enable paperless travel using biometric facial recognition technology. This means you will not need to show any physical ID at the airport to get in.