NRI Infinia User here - answers based on my experience
1) Would infinia for NRI be still usable in the smartbuy app for my overseas flight travels and hotels? For eg, I used my NRI infinia for a flight ticket from Paris to Heathrow, using smartbuy. Would I be getting 16.6% CB as RP?
Useable. However you need to register on the Smartbuy website with a local mobile number (sim must be active overseas, as it is OTP-based login). Then you can register your credit card on the website.
2) In the scenario of Smartbuy, would that be considered as international transaction or domestic? (Consider the same situation of flight from Paris to Heathrow as in question 1)
Everything on the Smartbuy website is treated as domestic transaction and in Rupees.
3) Would all of my international spends be deducted with 20% TDS, even for an NRI card? I understand it will happen on all spends beyond 5L with an Indian CC. But since this is an NRI card, would there be a 20% TDS still? Its true that all of it would be refundable, but why pay that much money upfront only to recieve it a year later refunded, thereby meeting an average of 3-4% loss.
Not sure about this. I registered my NRI Infinia Card on my NRE Account, not NRO, so theoretically there should be no TDS.
4) Since in one article somewhere I read that all NRI cards will have pre-enabled Autopay debit feature linked to an NRO account. So is there any way to pay the bill via other ways? Eg: Can I use sbiunipay/canara setu (if they are still rewarding in 2026), to pay the infinia NRI card bill, using IDFC wealth DC (NRO account with wealth programme)?
This is correct. Autopay is enabled on my NRE Account by the bank, and I cannot disable it. I haven't tried to pay my credit card via external means. I just did a test on Amazon Pay, and it looks possible but only via Netbanking. There is also a question of whether the bill can be paid with non-NRE money. If you know of any other external payment methods that also gives us points for paying the credit card bill, let me know. It will be interesting to see if it works.
5) Also, if payment via other way is possible, can I use any of my UK bank's DC to pay off the due of NRI infinia across any UK bill payment portal?
Unlikely.
6) Can I apply for an NRI Infinia, even before I attain the NRI status. Eg, to obtain NRI status you need to stay in India for less than 182 days in an year. So as soon as I leave to UK and start living there can I apply for NRI status and apply for NRI infinia?
You need to have a non-resident bank account and an FD, so I don't think you can apply for the card before even gaining NRI status.
7) With NRI Infinia can I apply for an add-on for my parent residing in India, for their domestic use? So that I can accrue rewards from my personal domestic+international transactions, and my parents domestic transactions?
Yes, you can - Parents, Spouse & Children (18+), but only 4 add-on cards are available. You will accrue points from their spending.
8) If my landlord in UK accepts CC for rent payment, would it be a wise idea to use NRI Infinia to pay off my rents? I will definitely try for one month, get the MCC and assess the situation. Still if anyone does this please do opine.
If it is allowed to use non-UK credit cards for local payments, then yes you can use your Infinia card. There is a 2% fee (+18% GST on the 2%) for each international transaction. Very useful if you are travelling out of India, and don't have that country's card.