Yes, you can file RTI Application to Bangalore University for Verification of Marksheet.
Bangalore University is a State Public University established in the year 1964 The University is a part of the Association of Indian Universities (AIU), Association of Commonwealth Universities (ACU) and affiliated by University Grants Commission (UGC). Bangalore University is accredited by NAAC under the new grading system with a grade A in 2016. Bangalore University is a "Public Authority" as per Section 2 (h) of the RTI Act.
You can file the RTI for Verification of Marksheet by addressing the same to the designated "Public Information Officer (PIO)" and by paying the prescribed fee. You should attach a copy of the Marksheet / Certificate which you wish to verify along with the application.