Colleges in West Bengal

Yes, you can admission here. You can apply for admission.
Good luck.

Your question is, which is the best IHM mentioned in your question in terms of placement. I have arranged them in ascending order for you.
IHM Goa
IHM Hyderabad
IHM Kolkata
IHM Chennai.

There is no common counselling organized by the COA or NATA. Each state carries out its own counselling based on your 12th percentage, NATA score etc. So you will have to do your research, see if the government colleges of the state you're interested to study in have all India quota seats or if you

I think, with this score it might be hard for you.

For which institution you are asking for?
Again, it varies from institution to institution.

Hello Kamal,
You may refer the link below to know the eligibility and admission process for M.Tech in food machinery and power at IIT KGP :
https://www.shiksha.com/engineering/course/m-tech-in-farm-machinery-and-power-indian-institute-of-technology-kharagpur-293507

For IIT Kharagpur, you have to qualify JEE Advance, then only you will get this college.