Hello All, I am a beginner to pulumi. Are there texts or videos to start with creating multiple go files for each resource inside a project?

You have some code examples https://github.com/pulumi/examples#go But, they are single file setups. Splitting in different file is standard Golang, you'd need to look into Go package if you want them in different folders: https://medium.com/rungo/everything-you-need-to-know-about-packages-in-go-b8bac62b74cc