D.Pharma

Yes, you can if you have the knowledge, then you can join any college you want.

https://www.business-standard.com/article/pti-stories/ugc-bans-distance-learning-degree-programmes-in-agriculture-119032700343_1.html
https://www.thehindubusinessline.com/news/education/ugc-bans-distance-learning-degree-programmes-in-agriculture/article26651801.ece
I am sure the above 02 News Stories from March 2019 will help you take a wise decision.
Avoid doing it if not approved.

The course D.Pharma is not offered in Dibrugarh University. Refer the link to know courses offered:
https://www.shiksha.com/university/dibrugarh-university-31514

Hi, Admission process varies for every college. Please confirm the college name in which you wish to apply for better understanding. Thanks.

No, the admission is through counselling based on the rank obtained in Maharashtra Common Entrance Test (MHT-CET).

Hi,
Please confirm the college in which you wish to apply for a better understanding. Thanks.

The duration of the course is 2 years.

Hi,
Please confirm the college in which you wish to apply for better understanding. Some of the colleges offering D-Pharmacy in the correspondence mode are MET Institute of Distance Learning, Rajasthan University of Health Science - Jaipur, Rajasthan, Guru Ghasidas University etc. Thanks.

The per Semester Fee is 44500 Rs at the RIMT University in Punjab. Diploma in Pharmacy is an undergraduate Diploma Course in the medical field of Pharmacy which involved in the preparation, dispensing and appropriate use of medication meant for therapeutic purposes. For Know more about fee and course: http://rimt.ac.in/diploma-pharma.php.