I seen lot of people keep searching there Income Tax Circle and Ward on Google at the time filling IT return. No need to wory now. Just Follow this link of Income Tax website. You need your PAN for this.
Click here to Know Your Income Tax Circle and Ward
Click on the above link and then fill yor PAN amd other detail . You get your Income Tax Circle and Ward. If there any issue please comment I will help you within 2-3 hour.