Good Evening ,

As per your mentioned query , i would like to tell you that doctorate of medicine in community medicine has a duration of three years. The eligibility criteria for this course is student must have the 50% in their MBBS and have the relevant PG degree from MCI recognised institute.

Basically, there is no age limit for post graduate course of community medicine.

To know more , visit the given link :

https://www.careers360.com/courses/community-medicine-course

I hope this helps.

Good luck!!