High milk production and excellent fertility is a dream of livestock owner. Proper management of young calf plays pivotal role in success of dairy farm. Optimum nutrition and better management favours early puberty and sexual maturity in livestock. Calf should attain 60 per cent of mature body weight at puberty. Body weight play important role as compared to the age in attainment of puberty in dairy animals. Poor feeding leads to higher age of first calving causes the loss of productivity in dairy development programme. Therefore, livestock owner needs to understand the importance of proper feeding and management for better development of dairy farm.