Seeking legal advice on university’s notice for deregistration from ll.b.

I am seeking suggestions and legal advice regarding a student who was initially enrolled in the M.A. programme at XYZ University. After completing the first year of his M.A., he took admission in the LL.B. programme at the same university, relying on the UGC guidelines, which he understood allowed a student to pursue two academic programmes together under certain conditions. Both the M.A. and LL.B. programmes were regular courses, but their class timings did not overlap. The student believed that pursuing both courses was permitted under the applicable UGC guidelines. He also completed the M.A. programme while continuing his LL.B. studies. The university came to know about his admission to both courses when he submitted a scholarship application. After this, the university issued him a notice asking him to deregister from the LL.B. programme. In the notice, the university referred to the Bar Council of India (BCI) rules of 2008, which restrict a law student from pursuing another course along with the LL.B. programme. The main issue is that the student relied on the UGC guidelines and was allowed to continue his LL.B. studies for about a year before receiving the notice. By the time the notice was issued, he had already completed his M.A. programme. Now, the student wants to know whether he can challenge the university's decision and continue his LL.B. studies. If continuing from his existing admission is not possible, can the university allow him to take admission again in the first year of LL.B. without losing an academic year? The entrance examination date has already passed, so taking admission through the usual process this year may not be possible. I would appreciate suggestions on whether the university's notice can be challenged, which guidelines would apply in this situation (UGC or BCI), and what legal options are available to protect the student's academic future and avoid losing a year.