GRE

Yeah you have to appear in either IELTS or Gre without these examination you won't be able to get student visa in any other country

Hello,
For doing MS in the US, you need an undergraduate degree preferably an engineering degree or 4 years US equivalent degree in a related discipline. You need strong academics, a good letter of references from your teachers, a strong statement of purpose & a high GRE & IELTS/TOEFL score besides your applications being completed a year in advance before deadlines of respective universities. You may log on to the website: ets.org/gre.org for GRE information & IDP or British Council websites for test registration & for more information on IELTS, please visit:
https://www.ielts.org/

Hi,
There is no eligibility criteria to take the GRE. Take the GRE to pursue Master's degree from the US.

If you are planning to take admission in a German University where medium of teaching is English then you do not require proficiency in German language GRE and TOFEL score will be a sufficient condition to meet eligibility criteria. However, you will have to gain working German language skills to live in Germany which is taught to all international students during induction program.

IELTS is valid only for two years. Take IELTS again. Take GRE with good score, and then apply.

First, you join good institute near you like TIME, IMS, Career Launcher, etc. So that you get a better idea of how to solve Questions Papers, Basics, Tricks, etc.
But just joining an institute is not okay.
You have to work hard, keep practising maths problems, logical reasoning, English grammar and all.
As you said, you are in the 2nd year so first, you have to focus on your graduation that is also important, start preparing for CAT in last year or I would advise you to after B.gain 1-2 years of work experience after B.Tech and then go for MBA as it would be better for your admission and placements.
Best of luck.

Before you study any course related book, read Word Power Made Easy by Norman Lewis. This is one single book, which if read dedicatedly will do wonders with your vocabulary and critical reading skills. Once you complete this, you can go for traditional Barron's and Princeton Review, etc.

Hi Aditi,
Every university and country has different admission requirements. Some countries like the USA require applicants to take the GRE while some do not. International students must also take the IELTS or TOEFL to meet English language requirements. You have to be sure of the country where you want to go and then you have to check the requirements.