Exam

Follow the given below link for the same:
https://iimcat.ac.in/per/g01/pub/756/ASM/WebPortal/1/PDF/Registration_Guide_CAT_2016.pdf

Many institutes say that they will take students without IELTS, but it's not true, because if you get admission in any institute abroad (like Canada), you will still not be eligible, because in Visa interview you need to show the proof of your English language test's result, and they need 6.5 band i

If you score well in IELTS and GRE , you have chances, but it's tough to get admission ,most of the applicants have good marks ,they need 75% mainly ,try to search more safer universities in Canada, like Newfoundland, York, Victoria, Laval, etc.

Last date for admission in M.Com at IGNOU was 17th August, 2016 and 31st August, 2016 with late fee of Rs 300. You are eligible and may apply for admission in M.Com now. You can submit B.Com mark-sheets once the results are announced.

After class 12th, you need 6 bands overall in IELTS with not less than 5.5 in any module.
So, your 12th percentage and IELTS score seems perfect to me.
Get yourself enrolled in Bachelors degree, you will get the visa.
All the best!

No, there is no specific entrance exam that you need to give to get admissions in BBA in aviation management. You just need to pass your 10th and 12th with minimum 55% marks from a recognized board.Top colleges for doing BBA in aviation management are:
1. Institute of Logistics and Aviation Managemen

Yes, you can appear for MAT.

After clearing NDA, you will become a commissioned officer i.e. the post of lieutenant. After that you will get promoted according to your performance and record.
After clearing NDA Exam you will be send to National Defense College, Pune for 4 Years Commissioned Training in any one of the wings of de