Seven major Indian airports will no long stamp cabin baggage after security checks, the Bureau of Civil Aviation Security announced on Thursday. The seven airports are Ahmedabad, Bangalore, Cochin, Delhi, Hyderabad, Kolkata and Mumbai. The aviation ministry is likely to extend this feature to more airports. The Centre’s aim is to eventually introduce biometric identification for those boarding planes, The Times of India reported.

The Central Industrial Security Force had done a trial run at seven airports in December 2016 before doing away with the security stamps. The trial was done for a month and deemed successful, after which the CISF said it would be tried at other airports too.

CISF Director General OP Singh had reviewed feedback from the pilot project after it ended, and said the initiative was “quite successful”. The force, which is responsible for airport security, had said their initiative was successful and the time taken to clear passengers had reduced considerably at several airports where the project was tested.

The force had said they intended to achieve two goals from the project – that security is not compromised and that the scrapping of stamps makes flying a better and more hassle-free experience.