INTRODUCTION– Malignant sinonasal carcinoma are a rare entity comprising <1% of all cancers and around 3% of all Head and Neck malignancies in human.Among these 15–20% aretransitional cell carcinoma also known as non–keratinizing carcinoma of sinonasal tract. AIM – An overview of diagnosis and management of transitional cell carcinoma of nasal cavity. MATERIALS AND METHODS – A 46 years old male presented with on and off bleeding from left nostril for 7 months, progressive left nasal obstruction for 5 months and headache for 3 months in the ENT OPD.He was examined, investigated and diagnosed to be a case of transitional cell carcinoma of left nostril.He was referred to Dept. of Radiation oncology for further management as the patient did not give consent for surgery. RESULTS– The patient has undergone conventional radiation therapy at a dose of 2 Gray per fraction(#) for a total of 30 # and dose of 60 Gray.The patient is now symptomatically better. CONCLUSION–Non keratinizing squamous cell carcinoma is a very rare entity.Only few cases have been reported previously as it has many symptoms like cylindrical cell carcinoma,Schneiderian carcinoma,Ringertz carcinoma.In most reported cases,it is not associated with any risk factors and present as progressive nasal obstruction.Management is surgical resection followed by Radiation therapy or Concurrent Chemo–radiation