Hello Arun, the scope for food technology has been in a great demand in the recent years and will continue to grow further.  Some of the sub fields include-

• As natural scientists, food scientist prompts on the strategies by which the crude materials must be changed over into prepared nourishment.
• As organic chemists, they propose enhancements in enhance, surface, stockpiling, and quality.
• As home financial specialists, they become the master in dietetics and nourishment and they test the nourishment and plans as per the bearings on the compartments.
• As architects, they are required for arranging, structuring, improving and keeping up the preparing frameworks.
• As research researchers, they do tests in regards to progress in yield, season, nutritive worth and general worthiness of the bundled nourishment.
• As supervisors and bookkeepers, they oversee organization and the funds separated from administering the preparing work.

There are much more than this. For further information, you can check at https://www.careers360.com/question-government-jobs-after-btech-in-food-technology Hope this helps.

Thank you