M.Sc

Yes, you can join because it's one of the reputed institutions in Tamil Nadu.

Eligibility criteria for M.Sc in forensic Science is as follows:
A B.Scdegree from any recognised university with at least 50% marks in the aggregate. The candidate must have studied for at least 2-years (4-Semester) of 3-years degree course any 2 subjects out of (a) Physics (b) Chemistry (c) Biology/ Zoology/ Genetics/ Bio technology/ Physical Anthropology
OR
B.Sc (Forensic Science) with minimum 50% marks from any recognised University (Eligible only for specialization in Forensic Document Examination).
B.Pharma students are not eligible to seek admission in M.Sc forensic science.

Both the courses are different and have their significance. However, if you are in a hurry to get a good job in teaching than you should pursue B.Ed.