Page mismatch next js 12

Hi there,
I recently uploaded my next js site using Pages->NextJSPreset.
After successful deployment , when i navigate to home url https://next-diptanuchakraborty-in.pages.dev/, it redirects me to some other page of my website which is https://next-diptanuchakraborty-in.pages.dev/sitemap.xml instead of my homepage . I am not able to understand why this is happening.

When i navigate to https://next-diptanuchakraborty-in.pages.dev/index , then i can access the default home page