I recommend you don't do MBA from BHU which take admission in the basis of PET exam, These courses take place in faculty of commerce not in faculty of management, You will get nothing from this course as the course is outdated with old syllabus and the placement is also very bad, So I recommend you not do this MBA course, If you want to do MBA in BHU do it in faculty of management which took students on the basis of their score in CAT exam.
Rest is your decision.
I hope the above information is beneficial for you.
All the best.
Get the BHU Pet papera from this link https://university.careers360.com/articles/bhu-pet-sample-papers
Hope it helps