BA LLB from DU is a three year course. The fees for the first year is Around Rs.7,500 for the second year and third year is near Rs.6,500 leading to total fees of approximately Rs.21,000.
A 5-year integrated course is also provided by faculty of law of Delhi University. If you want to pursue post graduation in law then you can consider that too. Its fees is approximately Rs.85,000 (deviations possible).
Sorry to interfere, but I haven't heard anywhere that DU provide BA LLB course. I heard that there is no BA LLB course currently in Delhi University. Delhi University only has 3 year LLB course.Correct me if i am wrong.