b. sc. followed by m sc. and ph.d to become only teacher
hi,
yes you can pursue msc course and may apply for school or college teacher job , however there is many other opportunities available after msc , you can do research in many reputed organization , for example , tata institute of fundamental research, drdo, isro, after phd course there is position in iits as a professor or research in many abroad university.
You can do any teacher training program such as BEd or DEd, in most of the government schools having this training is mandatory, also nowadays lot of reputed private schools recruit teachers based on qualifying CTET. You can also apply for your state TET exam, having these training program and passing the respective exams will enhance your prospects of working in good school with good pay package.





