Hello,

It is nice to tell you have score a good marks in 12th for applying in any college. Delhi University or DU is one of the top ranked central universities in India. To get admission in such college you have to clear entrance exam some entrance exam conduct itself by DU or some national level exam also there and you have to score good rank to get admission. So apply for entrance exam to get admission.

As you want to study cse or ece you have go to Btech degree so the total fees  was around 7 to 8 lakh . The hostel fees in DU differ from college to college . Some college demand fees around 15-20k per annum. So it depend totally on colleges.

hope this information will help you

All the best!!!