National Institute of Agricultural Extension Management (MANAGE)

Yes, you are eligible for this course.

According to your category, you may get the call.

Hello Satyajit
* I suggest you to use the Shikshas predictor tool for more information and this will help you to predict the college according to your choice rank or percentile visit this link:-https://www.shiksha.com/college-predictor. Good Luck.

Yes you can join hotel management course after engineering. Good luck.

You can avail scholarship under Sarthak Scheme of NIFT. You can read more about the scheme at https://nift.ac.in/sites/default/files/2019-03/SARTHAK-Policy final modification-1. Pdf

If you want to do MBA/PGDM, Agribusiness Management is the course for you. IIMA offers Food and Agri-business Management.
I am a Food tech graduate, and I have no regrets of doing PGDM from MANAGE in ABM.

For that, you need to score at least 80percentile to get a call from IIMA. For MANAGE, it all depends on cumulative scoring. Yours marks till now are good, and being from Agriculture course, you have high chance of getting a call. Yes, confirming a seat will be easy for those with 80percentile above in CAT. So study smart, score your best in CAT2019 to take admission in the batch of 2020-22

You can do Diploma after your graduation is completed. You are eligible for the same.
Good luck.