courses to become a Dietitian

VLCC offers Diploma and Certificate courses in regular class room programs and also has a certificate course in distance learning programme in varied categories like Nutrition and dietetics, clinical nutrition, sport and fitness nutrition, child care nutrition, weight management and slimming therapy

https://www.shiksha.com/medicine-health-sciences/dietics-nutrition/course/diploma-in-sanitary-inspector-imperial-institute-of-management-andheri-west-mumbai-288689
Here is the complete details of the course of nutrition and dietitian for this college

Customer Care Associate, Private Practitioner, Professor, Trainee Optometrist, Vision Consultant, Optometry Researcher, Optometrist Assistant, Asst. Nutrition Officer/Data Assistant, Junior Medical Coder, Lens Consultant, Office Assistant, Optometry Technician etc.

After M.Sc. In home Science, you can appear in NET exam for college lectureship. Nutritionists or dieticians may build a career in the following sectors- R&D (Research and Development), Healthcare sector (hospitals, clinics, health centres etc. ), Government schemes and organizations, NGOs, Teaching

Can you please be clear with your question? I am not getting it.

With a certificate course it won't be that easy to become a nutritionist. I would recommend, an advance Diploma or Bachelor's. But, a certificate course could be useful, depending on its value.