M.Sc Scope

Basically M.A. and M.Sc. are not much different. The college decides the syllabus so both course can be same. I can't exactly tell the difference between M.A. and M.Sc. Economics until I see the syllabus. Hence, again, all prospects are decided by the authority in question. It is up to the employer that how much salary they offer.

Hii Sriniwas,
If you go with the trend, pursuing Ph.D after M.Sc seems to be the most followed option. However, most of the IITs have great campus recruitment facilities for not only B.Tech students but also for other programmes such as M.Sc, M.Tech, integrated Ph.D, etc. For sure, you'll get a decent paying job.

Hi, Firstly, there is no age limitation to appear in IIT JAM exam. Secondly, I am mentioning some of the government sectors where you can get a job after qualifying JAM exam:
Defense Research and Development organisation (DRDO)
Physical Research Laboratory, Ahmedabad
Nuclear Science Centre, New Delhi
Saha Institute of Nuclear Physics, Kolkata
Bhabha Atomic Research Centre (BARC)
Indian Space Research organisation (ISRO).

Yes, you can apply for PGT. Eligibility criteria for Pursuing PGT post graduation is mandatory.
Check that particular university take CTET marks or not.

M.Tech requires B.Tech. So, you cannot pursue M.Tech after M.Sc.

Apply for fellowship or junior researcher in whatever field you want. Also, there are frequent vacancies in government sectors keep an eye for such notices and apply in them. CSIR and DRDO, etc. , give out vacancies each year and so do other institutes. Also, pursue Ph.D.

Biotechnology is all about research and innovation. After an M.Sc. In Biotechnology, you have many career options like:
Masters in Biotechnology (M.Tech)
Ph.D
R&D in a Biotech Company
Research Scholar in Biotech Labs like CSIR labs, DST labs, DBT labs, ICMR labs, ICAR labs, and many other private labs with fellowship. Entrepreneurship - Starting your own venture if you have an idea. Teaching.

Yes, Maths is a demanding subject, and it is valued all over. Meritorious students always find a space. There are lots of opportunities after M.Sc. And if you go for higher studies you will get better. Give your best.

Yes, you can easily get job after M.Sc. Food Science and Technology.

M.Sc. in Food Science and Technology has a good scope and yes, you can get good government and private jobs after completing it.