Hey @Neha-Afreen. The Raspberry Pi itself doesn’t require much in order to run. You can buy one at Amazon pretty easily. You’ll need:

Raspberry Pi 3 USB cable for power HDMI cable for video MicroSD card with the operating system
You can get most of that together in a Complete Raspberry Pi Starter Kit

That should get you started with the Raspberry Pi portion of the project. Let us know when you’re ready for the carpentry part!