Age assessment is an important part of medico legal practice. Changes are seen in both hard and soft tissues. Among the hard tissue, bones are important as they undergo a series of changes from prenatal to postnatal life. Mandible is an interesting bone as it depicts morphological changes in relation to age. During development of mandible, it ossifies with different centres of ossification to form hemi mandible. Mandible fuses in adults as a single bone of lower jaw. There was a slight asymmetry in the growth rate comparing the left with the right halves of mandible of the decomposed bodies ranging between 30-31 weeks, 31 – 40 weeks of gestation and 12-24 months of age. This study may be useful in the estimation of age in unidentified individuals and to monitor prenatal growth of the mandible.