The work you want, so I'll charge as little as possible - 10,000 rupees flat.
So what I understand from your description is that you want the ad that you have on your website to create a new popup window, each time you click on it. This can be achieved with a combination of HTML5 and Javascript, which are both also compatible with mobile browsers. It makes no difference whether you are planning to use adwords or not, because I can create an invisible button that will layer on top of your ad. When they click the ad, they will be shown the popup.
I can also make the popup show up automatically when they open the webpage. I can explain the details to you via chat (beta feature).
I really hope that you will give me the opportunity to work with you on this project, so that your website can bring in as much money as it can!
-Blendermaya