I wouldn't say its siloed off. Its often on popular forges like Github and Gitlab. But also on smaller ones like sourceforge, GNU Savannah, sourcehut, etc. My point being that a lot of the free software movement in India doesn't create the hot new Rust / Go app. Its more focused on smaller things or on using the existing tools
I know in China they typically host on Gitee - but it's in part an artifact of the national firewall. Didn't know in India it's also silo'ed off