As per your requirement, you need to book a Display advert. Please visit the following link: http://timesofindia.releasemyad.com/display-ad.php and specify the ad size as 15cm X 15cm or 10cm X 10cm and you can review the exact ad cost for the same in different editions.
You can compose the ad with our pre designed templates or you can simply upload your personally designed advert. Please ensure that you confirm the release dates and clear the complete payment at least 2-3 days before the ad is published.