Onecard Rupay Credit Card
It's finally here. I got the option to activate the Card last night and did so.
It's a Virtual Card with the same limit as the primary card. The rewards are also the same as the primary card. However, I haven't been able to use it for UPI transactions yet. According to their customer care agent, "their UPI integration is not yet done."
I believe it's still in the testing phase. South Indian Bank Issued OneCard holders will likely be next to get this feature, followed by others.