Yes, you can file RTI for Verification of Marksheet to Punjab Technical University.
Punjab Technical University (PTU) now known as I. K. Gujral Punjab Technical University is a State University established by an Act of State Legislature on 16 January 1997, to promote Technical, Management and Pharmaceutical Education in the State of Punjab. Hence the University is a "Public Authority" as per Section 2 (h) of the RTI Act.
You can file RTI Application to Punjab Technical University (PTU), addressing it to the designated "Public Information Officer " by paying the prescribed fee.
To know more about the procedure to file RTI for Matksheet Verification, please refer https://onlinerti.com/how-to-file-rti-online-for-marksheet
To know more about the procedure to file RTI Applications to the State of Punjab, please refer https://onlinerti.com/how-to-file-rti-online-for-punjab