Tried using my two numbers in two different mobiles. The second number does not have any bank acct linked to it. My objective was to test whether this can be used by my teenaged daughter or by myself, when at locations where the primary number has network issues.
1. Only Bank Acct will work.
2. I have 4 acct linked to to primary, Axis & AU with physical DC, NSDL & Jio with virtual DC. For UPI circle only Axis and AU were coming. So possibly, acct with physical DC only work
3. There are two modes, delegate mode and approval mode. Under approval mode, all txn go to primary user for approval with his pin and needs to be approved within 10 minutes. Which makes it unusable when the primary user is busy or unavailable. Under delegate mode it is supposed to work like UPI lite, making payment directly without any PIN by either primary or secondary user. For limit delegate mode, there is no option to set per txn limit and only monthly limit can be set. But in reality, it does not work. Txn is initiated but it fails to complete.
So as of now, this is a useless junk.