This study was undertaken to find out frequency of autoimmune thyroiditis, determine the age and sex incidence, mode of presentation and to know the status of thyroid hormones, auto antibodies and cytological features in the patients of Autoimmune thyroiditis. This is a retrospective study and was carried out between march 2013 and feb 2014.In this one year period 44 cases were studied- auto antibodies levels ,thyroid profile and FNAC was done and diagnosis of Autoimmune thyroidits was made. Out of total 44 cases, autoantibody levels were raised in 31 cases, cytological diagnosis of autoimmune thyroiditis was made in 29 cases. Clinical presentation as diffuse goiter was seen in 19 cases, female preponderance in 43 cases and maximum patients were from 21-30years age group. Out of total 44 cases studied 20 were euthyroid,21 were hypothyroid and 3 cases showed increased thyroxine levels. Based on our results the study suggests a high prevalence of Autoimmune thyroiditis especially among females and affected patients are from younger age group 21-30 years and are mostly hypothyroid or euthyroid.