GRE

GRE is necessary for securing admission for competitive courses like mechanical, aeronautical, civil or automobile engineering.
Other than that, it is not mandatory. You need to appear for scholarship tests like IELTS or TOEFL. German language certificate could be an added advantage but not mandatory.

Only good time is when you are fully prepared. GRE checks you a lot on vocabulary. So, mugging up around 2500 words is the only difficult part. Other than that, GRE exam is quite easy. You can write it whenever you want.

please go on below link for books on GRE Prepration.
http://gre.graduateshotline.com/top-4-books-for-gre-prep.html#.V_IwtiF95dg

HI Shivam, GRE is the standardized test for Masters studies in US and some universities in Canada. Why do you want to take a GRE? Please clarify.

You have a good chance in all the mentioned universities. Your GRE, IELTS and academics are good so you will get considered for these.

The following minimum scores are required to be considered for admissions into the MS Software Engineering Program:
Quantitative + Verbal (GRE q+v) score = 294 or higherAnalytical Writing (GRE AWA) score = 3.0 or higher

Hello Gaurav,
Actually there is no eligibility criteria to take GRE Exam. You need to have the specified identification requirements to take the GRE Exam.

Hi Sivaprasad, if you want to do an on-campus full time course you must take GRE or GMAT, certain exceptions may be available so you must check the university websites. MIT Sloan School of Management, University of Texas-Austin McCombs School of Business, USC Marshall School of Business,University of Rochester Simon Business School, Fordham etc are some good universities for business analytics.

Yes, USA is always the best, but you can prefer Germany, if you don't want to spend too much money. You should also learn German, at least up to A2.

No it's not same. GRE is the test of your basic mathematics, aptitude and English language however GATE is totally a test of your engineering subjects along with 15% aptitude and English.