The present study has endeavored to determine the  role of  ultrasonography (gray scale & colour Doppler) in defining  benign from malignant breast masses and to correlate these features to FNAC. 100 patients were included in this study who underwent  sonography  (gray scale and colour Doppler) and FNAC and correlate these findings to determine sensitivity and specificity, positive and negative predictive value, diagnostic accuracy of imaging  of  benign  and  malignant breast masses. Ultrasonography (gray scale & colour Doppler) is a non–invasive diagnostic option in patients being evaluated for breast pathologies. The value of adding a simple invasive procedure like USG  guided FNAC to this  enhance the diagnostic  accuracy.  The results of this study  reflect that combination of  imaging  ultrasonography (gray scale & colour Doppler) and  USG guided FNAC offers the best approach to  diagnosing a breast lesion.