Canada

Please mention which course do you wish to pursue as college rankings are different for all courses.

You can get the work permit once you receive a job offer. So it totally depends on how quick you can find a job.

It depends if you have work experience or not. If yes, then it could be around $50,000 a year. Otherwise your salary will be a lot lower or you might have to go for unpaid internship first to gain some work knowledge.

It is advisable to go for the course which is the most similar to your B.Pharm course. The reason for this is the fact that a lot of students get rejected for a student visa, as the visa officials feel their course choice doesn't correspond with their academic background. So compare the curriculum of both these courses and go for the one which seems the most familiar.

Hi Harish, Masters programs in Canada typically require applicants to have high academic standing more than 75% and above. You need to check the university specific admission requirements, you will see most of them requires a minimum GPA of 3.0 (B average) in the last 60 credit hours of study or last two years of your UG degree. You may still check Concordia University, University of Saskatchewan and University of Windsor.

Why can't you do B.Tech in India and opt for PG studies abroad? It is worth for you.

Hi Raman,
The work permit issued is usually equivalent to the length of the program. You may check CIC website for more details.
http://www.cic.gc.ca/english/study/work-postgrad.asp

You need to clear your backlogs in order to pursue a PG course.

Yes, but you need to know about the admission process of different countries. If you want to study your Master's in USA, you need to give GRE and TOEFL. If you want to pursue your Master's in other specified countries, then you must give IELTS or TOEFL and must maintain a good CGPA in your Bachelor's degree.
I hope it helps.

Yes, you can get easily in Canada or UK.