B.Tech

The curriculum of BTech is more career oriented, which is divergent to a theory-based course. B.Com on the other hand, is a Bachelor's degree in Commerce. It is similar to B Tech because it is an undergraduate academic degree, except that its focus is more Commerce related.

Sorry, but your percentage for CSE is very low as it is a demanding branch and needs a high score- above 80%.
You should have appeared for JEE Mains.
You can go for other courses in CSE like BCA, B.Sc or Diploma or improve your marks in 12th and give JEE next time. Or you can go to private colleges through management quota.

Yes, you are eligible for BE, B.Tech, B.Arch and any of the courses which you wish to join and build your career.

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Yes. There is a chance to be called in the 2nd round.

Placement- The placement in our college, particularly in engineering, hasn't been done yet because it started 3 years ago. The first placements and the opportunities will be there from the next year because the first batch will finish their 4th year in 2018.
Internship- Yes, our college does provide internships but only for the people who are eligible for it and the internships start from the 2nd year itself.

What is your JEE-MAINS rank? Because the only way to get admission into the college is through JoSAA, which is based on JEE Mains score.