In order to take admission in IHM you need to appear NCHMCT JEE Entrance Exam. As per the eligibility the upper age limit is 22 years as General OBC category & the age limit is 25 years SC, ST category as on July 1, 2019. You can check the further eligibility with the given below link.

https://hospitality.careers360.com/articles/nchm-jee-eligibility-criteria

Good Luck!