Post-operative sensitivity after composite restoration remains a challenge and in most studies postoperative sensitivity was found to be up to onethird of the study sample· Non carious cervical lesions [NCCL] cause loss of dental hard tissue in the cervical part of the tooth exposing the dentinal tubules to the oral environment. · Thus, when the affected tooth is exposed to heat or stimuli, it results in expansion and contraction of dentinal fluids in the gap formed, which causes fluid movement in the dentinal tubules leading to postoperative sensitivity. · Flowable resins tend to absorb the stresses created during polymerization shrinkage. G-aenial Universal Flow, a flowable resin tends to exhibit lower polymerization shrinkage stress of about 1.3 MPa, which leads to lesser postoperative sensitivity.· It is claimed that soft start polymerization technique reduces polymerization shrinkage sequentially reducing microgaps, microleakage, and postoperative sensitivity. Thus we have undertaken this study comparing postoperative sensitivity using G-aenial Universal Flo with step curing and continuous curing technique in NCCL · Hence this study will highlight if step curing is a better treatment modality than continuous curing in reducing postoperative sensitivity in NCCL, so that a better technique can be adopted in subsequent patients.