The purpose of the present study was to determine the extent to which the college boys differ in their n Ach level due to their religious and caste backgrounds. Two hypotheses were formulated. The first hypothesis that Hindu boys would be higher in n Ach than Muslim boys was not conformed. The second hypothesis that higher caste-boys would show a greater n Ach level than lower caste-boys was confirmed. The mean n Ach level of the present sample was also compared with the mean n Ach levels of similar samples from India and some other countries and it was found that the mean n Ach level of the Bhagalpur boys was the lowest.