OBJECTIVE: Our study is to evaluate role of submucosal diathermy in inferior turbinate hypertrophy. METHOD: Study conducted at our ENT center from July 2012 to July 2014 included 30 patients presented with nasal obstruction due to inferior turbinate hypertrophy with various cases like allergic rhinitis, concha bullosa, chronic rhinosinusitis, rhinitis medicamentosa, deviated nasal septum with compensated hypertrophy. RESULT: All these Patients undergone sub mucosal diathermy and followed up for one year. Among 30 patients, 22 patients completely relieved nasal obstruction within 3 months and 5 patients partially relieved and 3 patients showed no improvement in follow up of 6 months. CONCLUSION: Inferior turbinate hypertrophy is effectively reduced by submucosal diathermy. It is cheap, safe and effective procedure for long-term positive outcome.