Managing personal Outlook.com account settings, security, and privacy
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Please note that, during the purchase of your Office 365 subscription, if you were only offered a credit or debit card as a payment option, then those are the only payment methods currently available in your region. If you do not see any other options, it is likely due to government restrictions on alternative payment methods for this service.
As a workaround, if you have an iOS or Android device, you can link your UPI to Apple Pay or the Google Play Store, then open the OneDrive mobile app and purchase the subscription from there. In this case, instead of a credit or debit card, your payments will be processed via UPI through the respective app store.