Teaching & Education

You already did Master's right? Then, why are you choosing again a Master's? If your question is mistaken as B.Sc, better do M.Sc physics and try to clear NET or SLET for lectureship.
B.Ed also took two years but, now a days, good government job with B.Ed is a little bit tough to get due to the TRB and TET problems.
Good percentage in M.Sc will give you scope in research further with financial support.

For B.Ed, if you are financially sound and not looking for jobs immediately, then go for PhD.

Yes, there is no problem but 2-degree courses done together at the same time have no value.

Please use the link provided below for an exhaustive list of colleges which offer B.Ed courses from Gujarat. You should be able to navigate to a college of your choice using the filters on the web page. Download their brochure for details regarding the institute, course eligibility, admissions etc.
https://www.shiksha.com/teaching-education/colleges/b-ed-colleges-gujarat

B.Ed and teaching experience are the necessities.

Khandelwal College of Management Science and Technology (KCMT), Bareilly
B.Ed
UG Degree | Full Time | Duration - 1 year
Affiliated to Mahatma Jyotiba Phule Rohilkhand University
Download the college brochure form the link provided below for application dates, eligibility criteria, admissions etc. from this particular institute.
https://www.shiksha.com/teaching-education/course/b-ed-khandelwal-college-of-management-science-and-technology-kcmt-bareilly-189203

Sri Sai Group of Institutes - Admission Office, Connaught Place, Delhi
ETT (Elementary Teachers Training)
UG Diploma | Full Time | Duration - 2 years
AICTE Approved
Total Fees: INR 60,000
Affiliated to Guru Nanak Dev University
Download their brochure for details regarding eligibility criteria for this course, admissions etc.
https://www.shiksha.com/teaching-education/course/ett-elementary-teachers-training-sri-sai-group-of-institutes-admission-office-connaught-place-delhi-178888