THREE DUPLICATE ONLINE TRANSACTIONS PER DAY IS THE MAXIMUM LIMITATION; OTP IS A MUST FOR ANY TYPE OF ONLINE TRANSACTION !!!

"A duplicate online transaction can be 
done only after 30 minutes 
of a former successful 
online TRANSACTION; 
only 2 duplicate online transactions 
are allowed in each 12 hours, and 
3 duplicate online transactions per day 
must be the maximum LIMITATION. 
For any duplicate online transaction, 
a message will display, 'A same online 
transaction was successful recently, 
do you want to REPEAT ?'; 
if the customer 
presses the 
'Yes' button, 
then let it be IT. 
For QR payment as well as 
UPI payment, the OTP is a must 
to provide an extra SECURITY; 
in shopping malls and restaurants, 
there must be biometric authentication 
devices of high QUALITY. 
Even for doing any payment by providing 
AADHAAR Card number and fingerprint, 
OTP must be GENERATED; 
in any online transaction, the 
3-tier security system must 
be CREATED."- Arindam Sain