Mechanical Engineering

It depends upon a lot of factors like the university or college from you are pursuing the degree. The companies that visit the campus etc. On the whole both have good opportunity, but seeing the future trends and the improvement in the technological end, CSE degree candidates can have a better chance for salary rise and placements. But we can't wholly say that, anyone is better. Both have good career opportunities, provided the degree is done from a decent college with good marks.

Please visit this college predictor:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor

GL Bajaj is the best college in all the colleges you have mentioned above, as this college is best in terms of placements and also this college has the best faculty in comparison of all these colleges.

JEE Main Rank 1213, AIR, ST
National Institute of Technology Karnataka, Surathkal
Mining
Metallurgy
CSE
Indian Institute of Information Technology (IIIT) Dharwad
ECE
Keep floating to successive rounds during the seat allotment. Follow, https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor.

Yes, you can definitely get admission.

Hi,
Please tell what University of what college your evening at survivor guide you better, and all the best.

PGDM is valued in Canada, its a professional job oriented degree. Also, you can apply for a work permit after your PGDM. However if you want to come back to India you must gain some excellent work experience there or perhaps another degree like an MBA.