Hi Mourya,

Considering as you have studied 12th Biology, the best career options other than MBBS are as follows:-

Medical Courses:-

• Bachelor of Dental Surgery - BDS
• Bachelor of Ayurvedic Medicine and Surgery - BAMS
• Bachelor of Homeopathic Medicine and Surgery - BHMS
• Bachelor of Unani Medicine and Surgery
• Bachelor of Physiotherapy - B.Pth or BPT
• Bachelor of Veterinary Science - B.VSc
• Bachelor of Naturopathy and Yoga - BNYS
• Bachelor of Siddha Medicine and Surgery - BSMS
• Bachelor in Psychology

Non - Medical:-

• B.Sc. Hons. Biology
• B.Sc.
• B. Pharma
• And many more....

You may refer to this article for more information about Courses after 12th in Biology.

I hope this information helps you.

Good Luck!