Hello,
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Bsc Forensic science is a 3 years under graduate course. This course teaches you all about the scientific ways / provide scientific knowledge and all about the thing's which you need to learn about crime investigation.
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Forensic scientist are concerned with the crime investigations like identifying fingerprints / DNA / clues regarding crimes.
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You can apply  jobs in private companies or in government  fields.
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Here you have chances to  get job as a,

• Scientist
• laboratory
• scientific officer
• cyber analyst
• junior officer
• CID investigators

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Best colleges for bsc forensic science,

• banaras hindu university
• pondicherry university
• karunya instituteoftechnology
• sage university
• the northcap university

The list of colleges which offer Bsc in forensic science in India are mentioned below :

• Amity University,Noida
• Bundelkhand University,Jhansi
• Institute of Forensic Science,Mumbai
• Sam Higginbottom Institute,Allahabad

For more information you can prefer below mentioned sites

https://university.careers360.com/articles/5326-Career-review-Forensic-Sciences

All the best