Enps — PRAN not found in database after successful registration

I have successfully completed the registration to NPS via online portal https://enps.nsdl.com/eNPS/NationalPensionSystem.html.

Made my first contribution an got a PRAN generated in the eSigned NPS confirmation form.

But when i try to login i am getting error as "PRAN not found in database".

My application ACK number is 11196617.

Please guide on what went wrong and remediation for the same.