In India, Chronic suppurative otitis media (CSOM) is a general public health issue leading to hearing loss which can be corrected surgically by Tympanoplasty. By applying predictors for a successful surgery the effectiveness of the surgery can be improved. In this study we aim to determine the usefulness of prognostic factors in predicting outcome of surgery for better patient compliance. 1. To compare MERI scores and saccharin test time in predicting graft uptake and hearing outcomes in Tympanoplasty surgery. A prospective study included all cases of mucosal type of CSOM of either sex according to the inclusion and exclusion criteria. Saccharin clearance time was used to assess Eustachian tube function and Pure Tone Audiometry has been done Pre-operatively to assess Hearing. Risk categories were assigned using MERI scoring chart and severity of disease assessed by otomicroscopy during surgery. Patients were post-operatively followed up to 6 months. Outcomes were assessed using Graft uptake, Hearing improvement and for recurrence of infection, compared with different categories of MERI and Saccharin time. The overall graft uptake was 96.6%. 100% successful graft uptake was seen among normal eustachian tube function. Hearing improvement after surgery may be predicted by saccharin and MERI test. Abnormal Saccharin test shows guarded prognosis in predicting the success of middle ear surgeries. Based on the MERI score and saccharin clearance time, hearing benefit and Surgical success can be assessed and patients can be counselled prior surgery regarding the expected outcome.