Reconstructive Surgery or the ability to make a patient 'whole' again is the basic principle of any surgical speciality. Oral and Maxillofacial Surgeons have a long history of providing hard and soft tissue skeleton from time immemorial. The gold standard for bony reconstruction in the maxillofacial region is currently the use of autogenous bone. The various anatomical sites in the mandible like symphysis, ramus, coronoid process, lingual cortex, external oblique ridge are used as donor sites in grafting autogenous bone. The purpose of this article is to provide a comprehensive insight into the use of mandibular autogenous bone grafting procedures in the reconstruction of maxillofacial defects.