B.pharm

Admissions are made through counseling based on rank obtained in JEE Advanced. For further information regarding this course please refer to the link provided below:
https://www.shiksha.com/medicine-health-sciences/pharmacy/course/b-pharma-guru-nanak-institute-of-pharmaceutical-science-and-technology-gnipst-barrackpore-Kolkata-242449.

Yes, you can pursue criminology after your graduation. You need to graduate in any stream with minimum 50% marks in aggregate. You can then apply for 3-year LLL course or 5-year integrated course.

To go into marketing field, it is not necessary to do medical representative course instead you can pursue MBA in marketing from a reputed institute so that you can get relevant jobs. Else you can also go for MBA in healthcare or hospital management.

For this answer, I would suggest you to contact the college authorities. You will get a particular response from there.
http://www.banasthali.org/banasthali/wcms/en/home/lower-menu/contact_us/index.html
You can go through this link.

Hi,
The eligibility for admission in B.Pharm in Dibrugarh University:
HS (with PCB combination)
Method of selection:
On Merit basis (HS/D.Pharm)
Please refer the link below for your reference:
https://www.dibru.ac.in/images/notification/new/DU_infor_brochure_2015.pdf

MU-OET Question & Sample Papers 2018:
Download previous year question papers and sample papers of MU-OET 2018 for your exam practice at the link provided below. Question Papers for MU-OET 2018 available on Shiksha will enable you to improve your speed and accuracy. You can download all last years' MU-OET exam question papers and sample papers free of cost. You can also download preparation guides for MU-OET designed by Shiksha experts. https://www.shiksha.com/university/manipal-academy-of-higher-education-manipal/exams/mu-oet/question-papers?course=1097.

It depends on what you want to do further in your future because MBA is a platform where various different degree holders meet like BBA, B.Com, BE/B.Tech, etc. So, it's all up to you.