Hii Dharmendra..

I am providing the information what are the option one have after completing class 12th with physics, chemistry and biology (PCB) as thier major subjects. 

You have following options -

Popular Course Options after 10+2 with PCB

• Bachelor of Medicine and Bachelor of Surgery (MBBS)
• Post Basic BSc - Nursing
• Bachelor of Science (in Pure Sciences)
• Bachelor of Pharmacy (BPharma)

Other Arts courses available for Science students

• BA in Humanities & Social Sciences
• BA in Arts (Fine/Visual/Performing)
• Bachelor of Fine Arts (BFA)
• Bachelor of Design (in Animation)
• BA LLB (5 year Integrated Programme)
• Bachelor of Design (BDes)
• Bachelor of Science (in Hospitality & Travel)
• Bachelor of Science (in Design)
• Bachelor of Journalism & Mass Communication (BJMC)

Hope it helps.

Best of luck for your future.