The B.Sc(Forensic) and B.Tech(Biotech) both are good and provide immense opportunities.

As you are interest in studying Forensic science, I would suggest you to do B.Sc(Forensic), it will be good for you.

For your reference, here I am telling you the contact details of some good B.Sc. (Forensic Sciences) Colleges in India:

Amity University
Amity Delhi/Noida Campus Block J2, Ground Floor Sector- 125,
Noida, Uttar Pradesh
(0751) 3290666, 3290667
8349994630, 8349994631

College of Science and Research
Sethji Ki Kundal, Near IIM, NH 8, Baleecha,
Udaipur, Rajasthan
(0294) 6450002, 6450307, 6450308
9828772454

Dr. Babasaheb Ambedkar Marathwada University University Campus
Aurangabad, Maharashtra
(0240) 2403112, 2403113, 2403334, 2403223, 2403178, 2403299
(0240) 2403335

Dr. Hari Singh Gour University
Sagar, Madhya Pradesh
(7582) 264475, 264574, 265833, 264080, 264225, 264475, 264417
(7582) 264236, 264080, 264163

Galgotias University (GU)
1, Institutional Area, Knowledge Park- 2
Noida, Uttar Pradesh
(0120) 4370000
8130632999

Mangalayatan University
33rd Milestone, Aligarh-Mathura Highway, Beswan
Aligarh, Uttar Pradesh
(05722) 272100
9319222222, 9319888888
(05722) 254220

Raja Bahadur Venkat Rama Reddy Women's College (RBVRR)
3-4-527, Narayanaguda
Hyderabad, Andhra Pradesh
(040) 27564660, 27551026, 27564296

Swami Vivekanand University
NH. 26, Narsinghpur Road, Sironja
Sagar, Madhya Pradesh
(07582) 271602, 281352
9425425229, 9424459331, 9425452008
(07582) 226903

Teerthanker Mahaveer University
Moradabad Delhi Road, N.H. 24
Moradabad, Uttar Pradesh
(0591) 2360500, 2360077
9411635611, 9756861514
(0591) 2360444, 2487444

University of Mumbai
M.G. Road, Fort
Mumbai, Maharashtra
(022) 22652819, 22652825, 26526091, 26526388
(022) 22634461