Instructions to scan contacts from your delegates:
Step 1: Scan the QR code printed on the badge through the normal qr code scanner of your phone
Step 2: It will ask you for a login, use your registered email ID to login
Step 3: You will come across a successful scan page
Step 4: You can navigate to the My Scanned Contacts through the burger menu
and see all the scanned contacts and even download the scanned contacts in xls form.