See the video report here:
As quoted by The Quint in the article:
The primary pillars around which Nearex has based its products and services are NFC, biometric, QR code, audio and Bluetooth. The key focus of the company is to take payments completely offline and offer customers a solution that doesn’t require them to have mobile networks and internet connectivity to make cashless payments to vendors and retail outlets.
Also, read the full article here: