Hello Sony, PCB is an excellent choice in class 12 science and would open up multiple career doors for you. Some of the courses you can pursue for a bright career, other than agriBSc or Medical you can pursue:

• BPharma: pharmaceutical sciences is a brilliant field with lots of scope in research and development, and manufacturing, or employment with good pay scale
• BSc Biotechnology: Biotechnology is also a very good field.
• BE/BTech Biotechnology: Btech biotech can lead to a career in research and development or employment with good package
• Bsc Nursing: nursing is a noble profession and leads to a satisfied life and good career prospects
• Bsc life Sciences
• Bsc Chemistry: For a career in chemical sciences, research and development, industries, amnufacturing, chemicals development, mining, etc