Dietitian

Take full-length RD practice tests or focus quizzes, and track your progress to identify weak knowledge areas. The exam is multiple choice, with four answers for each question. The test is a computer adaptive testing CAT format, which means the difficulty of the questions increases or decreases based on whether you are answering questions correctly or incorrectly. The number of questions varies depending on how many you answer correctly, ranging from 125 to 145 questions. The test covers the following material:Principles of Dietetics (12%)Nutrition Care for Individuals and Groups (50%)Management of Food and Nutrition Programs and Services (21%)Foodservice System
For model papers you can refer this link: http://idaindia.com/questions-papers/

Graduates have handful of PG courses to choose from. M.Sc and PG Diploma courses can be used to specialize in disciplines such as-
Clinical Nutrition
Pediatric Nutrition
Public Health Nutrition
Food Science/Technology
Sports Nutrition/Dietetics
Gerontological Nutrition
Renal Nutrition
Some of the well-known PG courses available in India are - M.Sc clinical nutrition, M.Sc food science, M.Sc public health nutrition, M.Sc in food, nutrition and dietetics, PG Diploma in Therapeutic Nutrition, PG Diploma in Sports Science and Nutrition and PG Diploma in Food Science and Nutrition.
Course duration: M.Sc course lasts for a period of 2 years. PG Diploma course lasts for a period of 1 year.
Eligibility criteria: Must possess relevant Bachelor's degree from a recognised University/Institute. Minimum aggregate marks required could be around 50-55% (or equivalent grade).

Yes, it would be a great choice if you have interest in it. There are a lot of opportunities both in government and private sector. Nutritionists or dieticians may build a career in the following sectors- R&D (Research and Development), Healthcare sector (hospitals, clinics, health centers etc.), government schemes and organizations, NGOs, teaching and education sector. In Government sector you can work in:
Government hospitalsCommunity health centresGovernment Schemes and Missions (like ICDS, NHRM, etc.)Government Organizations (like FNB, ICMR, Public Health Foundation, etc.)Government R&D unitsGovernment Nursing homesGovernment Nutrition Education Institutes