Enps — Not able to make NPS payment.

Website:

enps.nsdl.com/eNPS/getSubDetails.html?ID=1501230012&getName=Online%20Subscriber%20Registration

Acknowledgement Number[protected]
Acknowledgement Date- 17/08/2023

I am not able to complete my NPS registration and make the payment for the last 2 days. It show the same error as mentioned below:

The response from the Payment Gateway for the payment attempt against this acknowledgement number is awaited. We request you to wait for the re-try of payment process for registration in NPS #