Abstract: The present study was conducted to see the level of professional competence with the variation of gender (male and female) and locality (rural and urban). The sample comprised of 300 teachers from 50 Secondary Schools of Kokrajhar district of Assam. Percentages (%), arithmetic mean, standard deviation, and z-test from the collected data, based on 4-point scale developed by the investigator himself, were calculated out. The findings of the study clearly reveal that professional competency of the teachers varies with the variation of sex and locality. Among both the sexes, the female teachers are slightly advanced in professional competency than their male counterparts. Again, the urban school teachers are more sophisticated in professional competency than the rural ones.