Mechanical Engineering

Yes, you can take admission in a college for aeronautical engineering.

As you are telling I failed in intermediate exam so there is no course for study if you failed in class 12th exam so you may go through examination next year so to pass the exam and get good college.
All the best.

Every branch has its own interesting topics some what easier for you and some are tough for you. So, never leave your passion just because of a hard topic. Everything is hard if you do not prepare well but if you prepare well then you can do anything you want.

Hello Anand,
As per your JEE Mains rank, you will easily get mechanical engineering in BIT Mesra, however, check here for more insights.
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor

Hey!
Possible, possible in private institutes who do not care about a students background and who is more interested to earn money from the students. Your IELTS score is good but most of the Canadian universities expect 60+ percentage with no backlog. If you have strong application and career progression you may have a chance.

CSE has better placement record than mechanical engineering along with good packages.