No,, you likely wouldn't be eligible to appear for the Registered Dietitian (RD) exam in India after completing a diploma in MSc Nutrition and Dietetics or a diploma in MSc Clinical Nutrition from IGMPI College.

A Post Graduate Diploma in Nutrition & Dietetics OR a Post Graduate Degree (M.Sc) in Foods & Nutrition/Clinical Nutrition/Dietetics (only as a day scholar from recognized universities).

The key factor is the distinction between a diploma and a degree program.  The IDA eligibility specifies a postgraduate diploma or a postgraduate degree.  While your diploma program might be titled "MSc" in Nutrition and Dietetics or Clinical Nutrition, it seems to be a diploma program and not a master's degree program.

To be completely certain, it is recommended to contact IGMPI College directly. Inquire about the qualification awarded upon completion of their diploma programs in MSc Nutrition and Dietetics or MSc Clinical Nutrition. If it's a diploma and not a master's degree recognized by the IDA, then it wouldn't fulfill the eligibility criteria for the RD exam.

I hope it helps!