M.Sc in USA

Hi Akanshya, you will get options but not the highly ranked ones which prefer students with extremely good academics. However plenty of options will be available. Focus on your GRE, anything below 300 will hamper your chances. Additionally you should work on building a very good personal statement. The recommendation letters must be compelling too. Demonstrate your strengths, extracurricular activities, project work etc. and any other distinct point that you think the universities should know about you.

It depends on the university you are applying. Go on the official website of the university and see its demand.
All the best.

Hi,
You must take exams like TOEFL or IELTS and GRE or GMAT. To study in US, you must take TOEFL and GRE or GMAT. GMAT is mainly for MBA. To study in UK or Australia, you must take IELTS. GRE is not compulsory. Taking these tests requires additional fee and has no effect on course fee.

You cannot possibly pursue an UG degree after you complete your masters. Also you must complete your bachelor before you could apply for masters. These are standard norms followed universally.

Hi Yash, majority universities in US require 16 years education that is four year bachelor degree. You can also meet this requirement by adding a one year PG Diploma course. Please check US New Ranking for the best universities in US for masters degree. You must take the GRE and TOEFL. Since eligibility requirement differ do visit university website for exact and updated information.