Background: Fine Needle Aspiration Cytology has been established as the investigation of choice in thyroid lesions. Different imaging techniques are now used for preoperative diagnosis of thyroid nodules like radionuclide scanning, high-resolution ultrasonography (USG). The present study aims at diagnosing various thyroid diseases based upon cytomorphological features in FNAC and wherever possible with its histopathological correlation, which is the gold standard. Material & Methods: A prospective study done on 100 specimens from thyroid were received in the Department of pathology, SMS Medical College, Jaipur for histopathological examination from SMS hospital, Jaipurduring one year period. Out of these 100 cases imprint cytology was done for 48 cases. A correlative study between Fine Needle Aspiration Cytology and histopathology was done for these 100 cases. Data analysis was done with the help of computer using Epidemiological Information Package (EPI 2002).