Hello Aspirant,

Unfortunately, now there is no other way to pay the examination fees for NIOS 12th standard because very last date for payment of application fee along with late fee was May 15th 2021 and it has been clearly mentioned in the notice issued by NIOS that no fees would be accepted after the last date.

So if you have any unavoidable reason than you should reach out to NIOS immediately and you can reach out to your study center or you can make contact to the regional center also. You can get all the contact details from the link given  below :-

https://nios.ac.in/contact-us/headquarter.aspx

I hope this information helps you.

Good Luck!!