Yes, You can file RTI to Nagaland University for marksheet verification. Nagaland University, the 13th Central University and the only Central University in Nagaland was established based on the Act of Parliament of India and received the assent of the President of India on 20th October 1989 as THE NAGALAND UNIVERSITY ACT 1989 (No. 35 of 1989).
Since it was established by an Act of Parliament of India and received the assent of the President of India, therefore, it comes under the ambit of section 2(h) of the RTI Act '2005. Hence we can file RTI to Nagaland University for marksheet verification.
To know further the procedure to file RTI application for marksheet verification, you may visit the following link:
https://onlinerti.com/how-to-file-rti-online-for-marksheet