Sir... Can I do M.Sc in Physics Without taking Maths in B.Sc and 12th after completing B.sc in Physics?
For the MSc in Physics, the course of Mathematics will be asked for mandatory at least for 1 year or 2 semesters as Generic Elective subject. so if you don't have Mathematics as an elective subject in your BSc course, then you will not be able to join the course of MSc Physics.
For more information regarding Physics as a career consider the link provided below:
https://www.careers360.com/courses/physics-course
I hope this helps. Wish you a great eve!