Canada

Check here for listed professions-
https://www.immigration.ca/fast-track-high-demand-occupations.

Hi Mehak,
A minimum of 12 years education is required for further studies. He can search for high schools to complete his 11th and 12th otherwise he won't be qualified for further studies. An important thing here to note is schooling can be expensive for international students, for the locals its free. Ask him to complete his 12th from NIOS or check schools in Canada.

Hi,
You can another MS or check for PG Diploma in areas like environmental Science, biochemistry, energy Science, renewable energy, food and nutrition etc. Just figure out your career plans, what you want to do and decide accordingly.

Yes, depends on the programme and university admission requirements. It may be difficult to apply to US and Canada since you have a 3 year degree. Just check admission requirements, course requirements and proceed accordingly.

It depends on the course and universities that you are preferring. When you select a course and university, visit their website and search for that particular course. In the course's admission details, you will see the eligibility criteria. There if IELTS or TOEFL is required, they will specify it with the required cutoff. To my knowledge, almost all the universities ask for IELTS or TOEFL score. It's no big deal actually to clear it. Just write the exam once. All the best.

Since you have one year stayback, I would say that you have a better chance of finding a job. How this actually works is that once you finish your course and apply for a job, they will first look at your Visa. If you have enough months to stay back, you have a better chance of getting the job. Of course, they look into your academics too. As for the second question, yes, once you get a job, your Visa will get extended as the company will provide you with a new Visa. All the best.

Different courses have different entry requirements. For an MBA most programs and universities require work experience. Also, many Canadian universities only accept a four year UG course. In your case you can look for PG Diploma programs. You can also check institutions like Thomson Rivers University and Vancouver Island University for MBA without work experience, many colleges like George Brown, Sheridan, Humber etc. Also, offer many pathways. You have to check through university websites and learn about the requirements yourself and then decide what to study.