IIM

Your 10th marks would serve as the major hindrance for your admission to major IIM's. Having said that new baby IIM's have somewhat lenient criteria which might help you in case you manage very good percentile. All the best!

If you plan to work and settle in UAE, then it is advisable to do your higher studies MIM from UAE, this will help in getting jobs easily.
But if incase, you are planning to come back to India and work here - then you should do your MBA from top Indian B-school. It will have a much higher scope in India.
So, think about your choices and wisely decide.

Branch and type of engineering degree does not impact your probability of getting into MBA at IIMs or any other B-School. You may pursue engineering in any branch of your choice.

Both the fields are incredible in their own way. Being a CA is also an adorable thing because it's considered as one of the toughest exam in India & doing MBA from IIM with good marks means average package of Rs. 1500000. So, it totally depends on you what you want to do otherwise both options are great.

Hi Navin,
As far as FMS is concerned: Yes, Nepalese can definitely pursue MBA full time course at the institution.
In fact there have been a few Nepalese who are currently pursuing MBA from FMS. You no longer have to have a GMAT score for being considered for admission into FMS. Please contact your embassy for detailed admission guidelines and procedure to be followed.

IIMs consider class 10th score. The composite score is calculated on the basis of CAT 2016 score, Class X and Class XII aggregate percentages, and gender diversity factor. Its just that based on your score no marks would be added to your composite score.

Yes, definitely, you get admission in IIMs but first you have to get very good percentile in CAT, so that you become eligible for IIMs and complete the GD/WAT and PI rounds.
Best of luck.