GMAT

Dear Tajinder, since your graduation marks are on the lower side, a GMAT score of above 700 can only help you get through a good university.Good returns don't come with the university only, your skills and academic performance will also matter when an employer evaluates your profile. You may also try taking GRE, a score above 310 is acceptable.
Best Wishes

Hi Rukmesh, which course are you planning to go for?

CAT and GMAT both contain Quant and verbal sections; cat has logical reasoning and data interpretation as an extra section. Although GMAT has data interpretation in form of Integrated reasoning (IR) section, score of this section is not counted in the total score but provided separately. Quant of Gmat is easier than Cat. Verbal of GMAT and cat too differs. So books for both differs.

Dear Sonali, there are plenty test prep center like TPR Manya Abroad, Jamboree, Chopras etc. You can google for more options. First you must decide which tests you want to take.

UBC would be ambi for you as your acads could be a problem. Plus you need min three years of experience for MBA program. Try to target a few lower ranked (compared to UBC) universities as well. Hope this helps.

GMAT is management aptitude test. only for those looking for experienced executive MBA have to clear it. Ability to take decisions and quick in giving solutions for problems is main theme for it

Gmat is graduate management admission test and is required for post grad admissions in universities abroad. For undergrad at USA, you prepare for SAT/ACT/AP etc.

Top mba colleges like IIM accept CAT so doing CAT would be beneficial and it is accepted nationwide so CAT would be sufficient
other specific exams like XAT should be given if you want admission in XLRI or few others
In maharashtra there is CET
so Find out which college you wish to apply and then select the exam
So I would say dont give every exam it will be waste of money and time
Just concentrate on 1 or 2 entrance exam

Ximb-xub's full time MBA programs take CAT, XAT and X-GMAT(conducted in Bhubaneswar) scores. Please let me know if you are opting for full time courses or executive courses or global MBA courses.

Hi
SAT is required only for undergrad, for master's you should prepare GMAT and TOEFL / IELTS anf get atleast 7 band score to be in a good college. Also, take some internships to make your profile complete as mba in most of the countries requires some work experience too.
Hope this suffice.