I agree with @rdyar that your _config.yml file needs updating.
I honestly don’t know how much matching case matters (it probably doesn’t), but since you use camel-case for the baseurl, I suggested you use it if even fir consistency:
Your baseurl: /samplejekyll
Suggested: /SampleJekyll
Take a look at your url and you will see a comment to the right that explains how to use it, which is to use https://…. Change that as well:
Your url: rutuja-kelkar.github.io
Required: https://rutuja-kelkar.github.io
Please note that when you test locally that is different. Your baseurl and url aren’t that important when you serve the site. However it matters a lot when you build the site. GitHub Pages is a built-in action that does the build for you on your behalf when you update your code. If you don’t have the correct baseurl and url at that build moment, your site will not function properly.