Hi Vaibhav,

After class 12th, you should go for a bachelor's degree, B.sc Physics and Master's degree after that, M.sc physics and then take up PhD.

You can choose your research topic as per your interest. You can choose theoretical physics.

Career options are quite vast in this field.

Study hard and do well. Keep your concepts clear and have clear understanding of the topics.

All the best for your future!