Health & Nutrition

Women's Christian College, Chennai. It is ranked 10th at the All India level among the best colleges in arts and science in NIRF rating.

Please refer to the link provided below for a list of colleges which offer courses in M.Sc in Food and Nutrition. You should be able to navigate to a college of your choice using the filters provided on the web page.
https://www.shiksha.com/science/colleges/m-sc-food-nutrition-colleges-india

Please refer to the link provided below for the list of top institutes which offer M.Sc (Food and Nutrition). You should be able to download their brochure which contains admission criteria and eligibility.
https://www.shiksha.com/science/colleges/m-sc-food-nutrition-colleges-india

How to become a registered dietician in India?
Educational qualifications required: B.Sc in Home Science (Food and Nutrition) or B.Sc in Nutrition and Dietetics or other relevant B.Sc courses. After B.Sc, one must also complete M.Sc or PG Diploma in Clinical Nutrition or Food & Nutrition.
After completing relevant B.Sc. and M.Sc. courses, one must go through 6 months long internship stint at any one of the many hospitals recognized by the IDA OR possess 2 years work experience at any multidisciplinary hospital as a dietitian.

Well, you have a great opportunity this time.
1-year isn't a big deal for medical field preparations where many put years to get success.
As per my opinion, you must switch to MBBS, you will have a better future scope.

To pursue Bachelors in dietitian, you need to have science with physics, chemistry, and biology.

Hello Sunidhi,
It's very nice to see your dream of becoming a dietician. Yes you can do it after 12th. Just check if any college in your city offers it. Else it's available via distance education by IGNOU also.