Introduction: The precise identification of skeletal maturity with regard to the onset of the pubertal growth spurt has major clinical implications in treatment efficacy and efficiency. Different methods in an attempt to determine the best indicator of maturity have been evaluated. But still researches are being done to assess the maturity of an individual in relation to chronological age. Aims and objectives: To evaluate the correlation of maxillary sinus area and frontal sinus area as growth indicator with chronological age to assess the maturity of an individual in Himachali Population. Material and Methods: 150 lateral cephalograms of subjects were divided into three groups of 50 each based on chronological age and each group was further subdivided into 2 subgroups of 25 males and 25 females: group I (8-10) years of age), group II(10-12)years of age and group III( 12-14)years of age and measurements were recorded ; the chronological age was correlated with the area of maxillary sinus and frontal sinus using SPSS software. Conclusion: maxillary sinus was found to be highly correlated with the chronological age.