Is nchmct compulsory for diploma course in ihm pusa?

No, NCHMCT JEE is not required for IHM Pusa diploma programmes.
Instead of using the NCHMCT JEE entrance exam, IHM Pusa offers merit-based diploma admissions, which are based on your performance in the qualifying exam, typically 10+2 or its equivalent with English as a subject.
The NCHMCT JEE is only required for a few postgraduate programmes and the B.Sc. in Hospitality & Hotel Administration.

For diploma programmes (such as Food Production, Bakery & Confectionery, and Food & Beverage Service), you must fill out the appropriate application form. Your application will be selected on the basis of merit.