Kindly suggest me how to design a web page for my above said topic. It is very urgent. Please help me.
Wireless sensor network webserver using zigbee protocol
You need to specify more information. Zigbee is not only a protocol but also a wireless standard similar to Bluetooth. I would imagine you need to share with us what sensors you wish to use and what type of data you wish gather/log/share with your web server.
Then you will need to select a Zigbee bridge hardware to work with a PC Server to talk with your wireless sensor network.
Start with that research and see where it gets you.