Question: "I would like to know if it good idea to use Yii for developing..."
First, are you sure that:
- A server-side webapp is what's needed?
- MVC is the right architecture for the requirements and not, say, CMS?
- PHP is suitable for your situation?
If yes to all then Yii might work well for you and is worth considering. Start reading the user guide and take the demo app for a test drive. If you like it then you may be getting closer to an answer to the original question. If not then there are alternatives for you to try.