courses to become a Dietitian

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.

Yes, you can go for this course after doing B.Pharma. Moreover, you have experience of pharmacy which will help you studying this course. All the Best.

Yes, since you have done masters, now you are very much eligible for dietician and nutrition course. It is an upcoming field and you can grab number of job opportunities after this course.
All the best.

In India-
National Institute of Nutrition, Hyderabad
University of Mysore
Institute of Home Economics, University of Delhi
University of Madras
University of Bombay
Osmania University
GB Pant University of Agriculture and Technology
Aboard-
The University of Sydney (Australia)
Coventry University (UK).

Hi Shreya Aggarwal,
Its not mentioned anywhere whether the institute is Co-Ed or not.
And the institute has a course in Diploma in Dietetics, Health and Nutrition .
Please click the link below for more information about the course.
https://www.shiksha.com/medicine-health-sciences/dietics-nutrition/course/diploma-in-dietetics-health-and-nutrition-vlcc-institute-chinchwad-pune-106501

Hi,
You can see different colleges in Delhi, which offer correspondence dietician course in below link:
https://www.shiksha.com/medicine-health-sciences/dietics-nutrition/colleges/diploma-courses-Delhi-ncr.

No, there is no entrance exam for this course. You may proceed.

Please visit this link to know about the same:
https://www.shiksha.com/medicine-health-sciences/dietics-nutrition/colleges/colleges-Delhi-ncr.