GMAT

Hello Sumanth,
For PGP programme, you will need to have:
1)Bachelors degree or equivalent in any discipline.
2)Valid GMAT / GRE score.
3)At least 24 months of full-time work experience by March 31, 2018.
4)TOEFL / IELTS / PTE score (only if the language of instruction at undergraduate study level is not English)
You may also refer:
http://www.isb.edu/pgp/admissions/admission-prerequisites

Yes, you can.
There's New York Stern, Columbia University and others in which the average GMAT score is near about what you've got.
Go for it.
Good luck!

These all exams are for MBA course. Different Universities and colleges have different admission criteria. Some take through CAT and some through MAT. Maximum universities and colleges take admission based on CAT and MAT score. XAT is for admission in FMS Delhi. GMAT is mostly for those who want to study MBA abroad. So you can choose according to your goals.

Yes XIM accepts GMAT scores for all.

Hello, well it depends on the university and the program. Any good university will ask for a GMAT score if you applied for MBA program. For any Masters, GRE is not essentially required though.

You can find the list of top colleges accepting GMAT for MBA course on Shiksha.com itself. You can refer to the below link:
https://www.shiksha.com/mba/articles/list-of-indian-b-schools-accepting-gmat-scores-blogId-4213

Yes, you are eligible to study abroad.
For this, you need to qualify GMAT & TOEFL.
Good luck.

MBA in IT would be a great option as you do have work experience and I hope you are from computer science engineering, which will make your profile stronger. Canada is one of the best place to pursue MBA and you do have opportunities after your MBA but assurance of job may not be guaranteed as it's based on your outcome from MBA. Wish you good luck.