One of my close friends graduated from Dayananda Sagar College of Engineering, Bangalore, and here is his insight on the evaluation of exam papers at the institute.
There is an option of revaluation but for this, you have to pay 500 for every subject. To evaluate your paper, you have to go to your department and fill out the details like your University Seat Number (USN) and subject code in which you want revaluation.
After this procedure, a portal will come to the official site of Dayananda Sagar College of Engineering where you have to make payment.