it depends upon what seat you are getting. There are two ways of getting into R V college . One is through Pre -University(PU or 12th ) and another is lateral entry(Diploma).
There are three categories of seat admission in RV. One is through CET or what we call Government seat or merit seat . To get this seat it is really very hard . The fees of this seat is for first year is 50,000 + 35,000 that is around 85000. It goes on reducing . You can approximate it around 75k per year for four years through merit seat.
The COMEDK seat has a different fee structure now currently it has 1.8L per year (no donation) Basically this is for students outside karnataka . The last category is Management quota where they ask u donations around 10 – 15 L depending upon your rank and branch ,donations plus COMEDK fee structure should be paid.
Lastly lateral entry students have only 2 options merit seat or Management seat with COMEDK fee structure.