Sinus lift techniques were introduced to enable implant placement and prosthetic reconstruction of posterior maxilla with insufficient alveolar bone. Diminished bone height in the posterior maxilla can be modified by grafting the sinus which creates adequate bone for implant placement making the procedure advantageous for posterior maxillary edentulism even in atrophic cases. There are various procedures to reconstruct the posterior maxilla. The technique for sinus elevation includes crestal osteotome technique and the lateral window technique. It also increases the quality of bone, increases primary implant stability and decreases implant failure. Sinus lifting enables implant placement with improved esthetics and optimal function. In this article, based on the evidence of case reports, prospective/retrospective studies, RCTs, systematic reviews and meta analyses, we had discussed about the sinus lift techniques and modifications, graft materials used to augment sinus and complications of sinus lift in detail and also reviewed the current literature.