The study investigates the variation in the menstrual characteristics among adolescents of three different age groups, and the significant factors associated with menstrual characteristics. We selected 257 Bengali Hindu adolescent girls who attained menarche at least one year before the date of interview and aged between 12 and 22 years from the state of West Bengal. The participants were divided into three groups on the basis of their present age, namely Group 1 (12 to 14 years), Group 2 (15 to 17 years) and Group 3 (18 to 22 years). We used well-tested questionnaire to collect information on socio-demographic variables, menstrual characters, gynaecological problems and management of menstrual and gynecological problems. Results show that significant differences exist between these three age groups in menstrual characteristics, such as age at menarche, menstrual bleeding length and cycle length, skipped and irregular menstrual cycles, presence of PMS and the presence of gynaecological problems. Binary logistic (enter method) regression analyses reveal that age group of the participants along with some other socio-demographic variables were significantly associated with menstrual characteristics.