Hi Harsh,

The best courses after 12th(PCB) for a biology student that has best scope in the future are as follows:-

• Bachelor of Veterinary Science (B.VSc)
• Bachelor of Ayurvedic, Medicine and Surgery(BAMS)
• Bachelor of Homeopathic Medicine and Surgery(BHMS)
• Bachelor of Unani Medicine and Surgery
• Bachelor of Pharmacy (B Pharm)
• Bachelor of Physiotherapy
• Pharm D
• Bachelor of Siddha Medicine and Surgery(BSMS)
• Bachelor of Naturopathy and Yoga (BNYS)
• Bachelor of Occupational Therapy
• Bachelor of Science in Cardiac or Cardiovascular Technology
• MBBS
• B.Sc.
• B.Sc. Hons. courses

Refer here for more info - 21+ Courses after 12th with Biology - Career & Job Opportunities (careers360.com)

Feel free to ask doubts in the Comment Section.

I hope this information helps you.

Good Luck!