Hi, the approximate fee for Bachelor degree in Computer science in Delhi University would range between 30,000/- to 40,000/- varying in terms of collge, the facilities they offer, the amount of tution fee they charge etc. Ypu can check individually for various colleges you want to get admission in or have passed the cut off bar depending on the current list from their websites or by contacting the university itself to know the detailes structure of the fee. 

Good Luck