GRE

Hi Faiz,
First, you need to know the difference between the two programs and match with your career plans. Which one is better will depend on your career plans. MIM is Information Management while MEM is Engineering Management, know what you want and then compare. Learn about career outcomes of both the programs, since you are an engineer MEM will suit you better but you should be knowing what is best for you and it's your personal choice. Decide accordingly.

Hi Ramya,
First decide where to study, since you took the GRE I assume you want to study in US. You should check the admission requirements of the universities, every university has different admission criteria so you must prepare accordingly. You must also check the fee, scholarship options, post study work options, deadlines, etc.

Hi Saumya Singh,
GRE is the Graduate Record Examinations, it is a standardized test for enrolling into Master's degree programs in USA universities. Besides USA, other countries may take GRE but generally it is not mandatory as seen. It is required mainly in USA. Since it is for MS degree, you must complete your Bachelor's degree though the test itself has no eligibility.

Without clearing your backlogs, you won't be able to go to Germany for mechanical engineering, hence clear your backlogs first and then opt for Germany.

Please refer to answer by Sreevignesh. Both the scores (CAT and GMAT) are valid.

Hi Kiran,
Some of the very popular ones are:
University of California -Berkeley
University of California - Los Angeles
Carnegie Mellon University
Purdue University
Arizona State University
University of Texas, etc.

Hi,
The popular guides are:
The Official Guide to GRE by ETS.
Manhattan Prep GRE.
Barron's GRE.
The Offical Guide to the TOEFL by ETS.
Cracking the TOEFL iBT by The Princeton Review.

Hello,
GRE is to be taken if you desire to pursue your Masters in the USA. You can take the GRE , to help you prepare for the exam you may refer to its official website https://www.ets.org/gre and access the wide variety of practice tests, downloadable materials etc. A practice test before starting the actual preparation is recommended, this will help you understand your weakness and strengths. Regular practice tests thereafter will help you check your progress. Around 3-5 months is ideally required, you may create your study routine as per your convenience and stick to it. Time management is the key.

GRE and IELTS serve different purposes. IELTS (and TOEFL) is required to demonstrate English proficiency. GRE is a standardized test which is required if you are applying for admission to reputable universities like USC. So, you need to take GRE and anyone of TOEFL and IELTS.