Engineering

No, you cannot take this course's degree in part time as it is a full time course. Further information is available at :
https://www.shiksha.com/aviation/flying-pilot-training/course/private-pilot-license-ahmedabad-aviation-aeronautics-ltd-airport-road-237874

Kindly visit this link for the detailed information:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor

For information on M.Tech in computer and engineering, open the link:
https://www.shiksha.com/engineering/course/m-tech-in-computer-science-and-engineering-techno-india-university-salt-lake-city-kolkata-200768

You have to appear for PSC (Public service commission) to get into the services for government job of the state where you want to do the job. Regarding jobs in private sector, you have to visit the company's website for vacancy.

It depend upon you what you want to choose both courses are good where your interest lies but according to me B.Tech in food technology is better scope you have a good no of vacancy in government dept for same.
Sorry but according to last year cutoff your selection chances are very less.

Dear Vinay,
Check the below link to see top colleges based on ranking, cutoff, fee structure and other details. You can choose the best 5 colleges from the below link to apply for MAT registration form.
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.shiksha.com/articles/amp/top-mba-colleges-accepting-mat-score-blogId-6056&ved=2ahUKEwjrtbLk_YPjAhXX73MBHY75D7cQFjAPegQIBBAB&usg=AOvVaw3EinJVI59nqfmV_9Hd6BUW&cf=1&cshid=1561443399318