Mechanical Engineering

First of all, your career should not be depending on the scope or want list in the field. All you should have is passion. If you're passionate then scope doesn't matter. Follow your passion.
Secondly, when it comes to the IT field, not only developers have work. If he has built something then you people should be there to check if everything is alright. You need commitment and passion to become a successful tester.

BVM Engineering College is one of the reputed technical institutes imparting finest quality education. It has an average placement record. Please check the link provided for better details about the college placement:
http://www.bvmengineering.ac.in/comman_page1.aspx?page_id=4

There are a lot of entrance exams for those who are going abroad.The exams are:
1. GRE
2. IELTS
After satisfying the eligibility criteria you have to show bank balance then only you are eligible.
Along with the bank balance, you must have a passport.
Instead of abroad, India also has good universities for M.Tech.

Hi, 310 is a decent GRE score. Apart from that you must also check your academic averages, your overall profile will be evaluated, your project work, extracurricular activities, SOP, LORs, etc. Different universities have different requirements so shortlist accordingly.

You can take GATE exam for government jobs or you can appear for IES exam.