The present study intends to look into the pattern of adolescent growth with age at menarche among the tea garden girls of Dibrugarh district, Assam. The adolescent girls, belonging to the age group of 9-17 years were measured for nine anthropometric traits i.e. stature, sitting height, lower extremity length, girth of bicep, girth of calf, waist circumference, hip circumference, chest circumference and body weight. Growth in all the measurements increases with age, though not uniformly. For most of the traits the highest growth spurt is observed between the age group of 9-11 years. The mean age at menarche was found to be 12.88±0.07yrs .The difference in mean menarcheal age of girls between the joint family and nuclear family and between the girls from families with different monthly income was also not found to be significant. The difference in the mean age at menarche of caste groups, namely Karmakar, Sabor, Tanti and Oraon was found to be statistically insignificant. No variation in respect of menarcheal age therefore exists among the caste groups of Tea garden workers. This is pointing towards the fact that all the caste groups of the Tea garden workers might possess similar genetic endowment and may be there also exists a similar environmental condition among them.