Back ground & Aim: The main aim of this study was to determine the physical fitness index of the medical students using the modified Harvard step test and to compare the physical fitness between male and female medical students. Methods: The study was conducted in department of Physiology, GMC Kathua (J&K). A total of 94 subjects were selected, of whom. 48 were male and 46 were female medical students, whose age varied from 17 to 24 years. The subjects selected for this study were medical students admitted for 1st year MBBS Course. Descriptive data for age (years), gender height (m) and weight (Kg) were obtained and Body Mass Index was calculated.