Widening of the external auditory canal not only grants better visualization of the tympanic annulus after drilling the posterior and inferior canal walls, but also aids in secure placement of the temporalis fascia graft and wide surgical access.This retrospective study includedall adults who were diagnosed with mucosal type of COM and planned for surgical treatment (Myringoplasty).100 patients (50 of whom had undergone canalplasty and 50 who hadn’t) above 18 years of age diagnosed as COM from December 2015– March 2017 were included in the study. The mean post–operative A–B gap was 9.9 ± 3.8 dB and10.1 ± 5.2 dB in patients who had and hadn’t undergone canalplasty respectively, after the 3^rd month of follow up.There was a statistically significant difference, on comparison of the improvement in A–B gap at the third post–op month. Other advantages of performing a canalplasty include excellent visualization and surgical access.