Engineering

I think that Chandigarh University is the best private university in Punjab according to placement. So, go for CU.
Good luck.

One might be pursuing a Master's course in any branch of Science. Mathematics, statistics, C. se or equivalent courses and can attempt the GATE exams. However you should be in your final year or have completed your course in 2018. If you are supposed to complete your course in 2019 later, then you would require a certificate from the principal instead of your pass or provisional pass certificate.

You can better try for newer IIITs, GFTI colleges, eastern side NITs.

Yes, if you can do computer Science in good manner and you have interest, you can take it's future is bright.

Hi,
Very difficult with this score. Still give a try and participate in counselling. Also, apply for information technology as well at the time of counselling. You should predict other possible colleges here:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor

Jaipur National University is a good institute for food technology. Here are the details of the courses they provide
B.Sc. (HOSPITALITY & HOTEL ADMINISTRATION)
Duration: 3 years
Eligibility: 10+2 with min 50 % in aggregate
Selection Procedure: PI
Bachelor IN HOTEL MANAGEMENT AND CATERING TECHNOLOGY (BHMCT)
Duration: 4 years
Eligibility: 10+2 Pass (any stream)
Selection Procedure: Entrance Test + Personal Interview
BHMCT+MBA
Duration: 5 years
Eligibility: 10+2 Pass (any stream)
Selection Procedure: Entrance Test + Personal Interview
Visit: https://www.jnujaipur.ac.in/schools/school-of-hotel-management-catering-technology/.

Hi Abhishek, You will not get computer Science engineering in any nits. So you should try for other branches like information technology, electronics and communications engineering, electrical engineering, civil, mechanical engineering etc. These branches will be available for you in lower order nits like NIT Patna, NIT Jalandhar, NIT Jamshedpur, NIT Durgapur etc. Best of luck.

You haven't mentioned any particular colleges. But for your information, colleges are currently accepting admission for various Diploma courses right now.

If you asking for dual degree B.Tech and M.Tech then there will be some chances for you but if you are asking only for M.Tech degree then there is no need for JEE MAINS score. Your B.Tech marks are enough.