Masters

Both the courses are good in their own areas. If you just want to get a job, go for Diploma but if you want to go for higher studies, I will suggest Masters.

As you have done your Bachelors in commerce then is no need of a Diploma.

Hi,
Colleges for distance learning for post-graduation in supply chain management:
NMIMS Global Access School for Continuing Education, Chandigarh
MIT School of Distance Education
Amity Directorate of Distance and Online Education, Amity University
Prin. L. N. Welingkar Institute of Management Development and Research
Symbiosis Centre for Distance Learning, Kolkata
UPES - Centre for Continuing Education
Symbiosis Centre for Distance Learning, Ahmedabad
The Counselors | Navi Mumbai
https://www.shiksha.com/mba/colleges/distance-correspondence-mba-colleges-india?uaf[]=specialization&ts=20255337&rf=filters&sp[]=487&ed[]=et_21::dm_34

Candidates with a background in science subjects can pursue a career in forensic science. One can do graduation in forensic science (I. e B.Sc. Forensic Science) after 10+2. After graduation they can take up diploma courses in Forensic Science & Criminology which is of 1 year duration. To take up a Masters course in forensic science you need to be a graduate preferably with a first division in Physics, chemistry, zoology, botany, biochemistry, microbiology, B.pharm, BDS or applied science.