GMAT

Hi, you may, depending on how selective the universities are, how strong the other applicants are etc. You must show some relevant skills, good skills in quants, projects, workshops etc. LOR and SOP is also required.

Yes, the preparation for CAT MAT & GMAT differ. CAT & GMAT or more similar but it differ from MAT. I hope this helps you. Be free to share any problem you have.
Good luck.

GMAT and CMAT are both entrance exam for post-graduation. The Graduate Management Admission Test GMAT is a computer adaptive test intended to assess certain analytical, writing, quantitative, verbal, and reading skills in written English for use in admission to a graduate management programme, such as an MBA. Common Management Admission Test CMAT is an online computer-based test conducted by the National Testing Agency, India. It is a national-level admission test for facilitating institutions to select suitable students for admission in all management programmes approved by AICTE.

Yes, GMAT it is acceptable.

Hi, If your only objective is to pursue MBA abroad, you should appear for GMAT.

Hi,
No top university will admit you without a GMAT or GRE score. You can reattempt the GRE if the score is not high enough. Typically a score above 310 in GRE and above 650 in GMAT is average. Also remember if you have an excellent profile, brilliant recommendation letters, career growth etc. You may still be accepted with slightly lower test scores, universities check applications holistically.

Yes, you can apply but you have to appear for one of the entrance exams from the given options CAT/MAT/CMAT/XAT/GMAT/ATMA. As the weightage percent is 10 for these exams and 50 percent weightage is given to interview and written tests.

Here at Taxila, we have profile based marking system which is a cumulative of class 10th percentage, class 12th percentage, Graduation percentage, competitive exam score and other online process as well.
Among these, each section will have a weightage, for Competitive exams, it is 10%.
So, there is nothing like minimum score- the better you scored, helps you in during weightage evaluation.

Yes, overall a good option. If you are interested to work in German corporates you might be exposed to a good network. Post study work option and PR options are also quite good. But, not every university has a good MBA programme. You must check for top ones like Mannheim, Frankfurt, Otto Beisheim etc.