UK

Dear Susanta, scholarships are awarded on merit basis by the universities. You may visit university websites for details. You can also check British Chevening scholarships, Commonwealth scholarships and Fulbright scholarships for US.
Best Wishes

Yiu can definitely plan. However you need to take GRE and IELTS too.

Dear Sarvesh, you can go through https://nationalcareersservice.direct.gov.uk and gov.uk for updates, data and statistics.
Best Wishes

Definitely LSE its one of the most renowned institute in the world.

Unfortunately not.
You have to look at a score of 325 and above along with higher GPA and overall profile of all rounder for top universities. However if you want to study from an average university and your MS subject is not very common, you can then consider positive chances of admission

Dear Mahesh, US is very competitive but if you manage to get through one of the top universities you can consider yourself lucky. In terms of work permit Australia is easier though compared to UK and US. Check the pros and cons, expenses, post study work permit schemes etc before deciding where to study.
Best Wishes

Dear Ishaan,
Which program have you planned to study at LSE?

Middlesex University will not accept student without experience. A postgraduate can earn 2 to 3 lakhs INR per month. You have to decide how much you are employable to compete in the Global market . The system if study itself is more different than study system in India. If you are looking for only high pay job no need to look for MBA Abroad.