Welcome Naveen! First navigate over to Getting Started with Lightship ARDK. We don’t have a tutorial that will show you step by step, but we do have tons of information to get you started.
Also, check out our Semantic Texture tutorial that would assist in creating textures and finding walls. You will have to implement the code for this project on your own.
I would also point out the Sky Writing example on our youtube channel. This would be very close to what you’re trying to implement. Let me know if you have more questions.