You have chosen a field that has a good career growth potential and high returns. The Indian food processing industry accounts for around 30-35% of the total food sector.
This 15 page article gives you the relevant insight into the food processing science which would help you to understand the concepts and the areas you can keep in him for further studies.
The various core areas you can focus on would be
food processing engineering
food supply chain
food cold storage
food plant operations
Human resources in Food processing
food testing lab research or management
Please take time to know about these areas and shortlist a couple that you like and pursue it.
The premier centers are
1.National Institute of Food Technology, Entrepreneurship & Managment.NIFTEM
Deemed Univeristy. You can check the B.TEch,M.Tech,Ph.D courses offered by this university.
2.Indian Insitute of Food Processing Technology. IIFPT
It also offers similar courses
The other centers would include
4.Institue of Chemical Technology (ICT) Mumbai
7.Sadar Patel University,Vallabh Vidayanagar,Gujarat. This offers Msc in food processing