B.Sc. in Forensic Science 

at Sri Nagalakshmi Ammal College of Sciences, Madurai

Common roles and responsibilities of a Forensic scientist involve the following

• Reconstructing the crime scene. 
• Examining hair, glass, blood & drugs samples by DNA profiling, chromatography & mass spectrometry
• Providing scientific evidence for the court.
• Research & Development.
• Recovering data from electronic devices.
• Writing Reports.

Note: Specific line of work differs across the area one is dealing with. 

Colleges in India generally accept both of these streams for admission in forensic Science courses. Each stream has its advantage. For instance, biology shall help making foundation in study of biological evidence like DNA, serology, toxicology, etc. and a background in maths can make data-heavy subjects and digital forensics easier. Some students also take PCMB for a broader scope in forensic science.