MBA/PGDM

You need to complete Bachelors to pursue MBA. You can look for MBA in operations management. You can check for colleges like SIOM-Nashik, NITIE-Mumbai, NICMAR-Pune.

To opt for MBA in hospital management, you must target CMAT/CAT. IMS-Indore do accepts CAT/CMAT scores. You can also look for TAPMI, IMI-Delhi, you can check the below link –
https://www.shiksha.com/hospitality-travel/hotel-hospitality-management/articles/best-colleges-for-hospital-administration-blogId-3202

Yes pursuing MBA is a good option after graduation. As you already gained technical knowledge. You can learn some managing and analytical skills required in corporate world. Based on your interest you can look for Marketing/HR/Operational.

Yes, you can very well opt for MBA. A good score in CAT is very beneficial for you, as you already gained 6 of years experience as entrepreneur. Apart from MBA, you can also try for 1 year executive MBA.

Yes you can go for MBA after B.Sc in food technology. You can pursue MBA in any field of your interest like Marketing/HR/Operations. MBA gives you an opportunity to showcase your abilities at managerial level. MBA is altogether a different playing field.

Yes, MBA will be a good option for you. It will open opportunities for you at managing/analyst level in the organisations. MBA will not be specific to agricultural field, you will get chance to showcase your abilities in the field of Marketing/Finance/HR/Operations.

There are no restrictions as both are of the same course. Even one of the person I know has done his B.Sc in hospitality and later did MBA in hospitality and is living his life very happily. There is no such confusion and hence, you can pursue B.Sc in hospitality management and then, MBA.