If you are very interested in physics and mathematics then I feel that you should surely prepare for the JEE Mains which is the entrance examination for engineering.
Also you can choose architecture and undergo a B. Arch course.

Hello Ajay.

If you are thinking that your physics and mathematics are good and you also have a great interest in them then I would like to suggest you to go JEE mains because this exam is for you type of people having high quality interest in subjects. Ok hope it will help you.

Feel free to ask any query further.

Good luck