Earlier there was no difference between the DU SOL courses and the regular college courses.
But now, the pattern of conducting exams has been changed for regular students. The university has introduced a new semester scheme in which exams are conducted twice a year. Whereas, for SOL students, exams are conducted once a year. Otherwise, the syllabus is the same and quite good.
The semester mode had brought a slight difference between SOL DU and regular courses.