I am curious about what you're trying to self-host. If it's something as simple as a static website, you can simply use a cheap, secondhand Raspberry Pi? Maybe, even a cheap RISC-V SBC, or an ESP-32 web server?
If it's anything similar to a substitute mirror server for Nix/Guix, you'll be needing lots of storage.Now, if its a build farm you're talking about, then I'm afraid you'll have to spend a good amount.
eBay has a lot of cheap stuff from the USA. Including the shipping charges (which I'm assuming also includes duty), you can save almost around ₹5-10k.