Finding Hindi novels translated into English for free is trickier than with Japanese or Korean web novels, honestly. The whole scene is way less centralized. I've had luck with a couple university digital archives, like the ones from Columbia and Chicago, that have older works from Hindi literary traditions. Otherwise, you're mostly sifting through scattered PDFs on sites like Internet Archive or Rekhta, which is mostly Urdu but has some Hindi overlap. It feels more like academic research than casual reading sometimes, which can be a drag if you just want to enjoy a story.
I'd also poke around on Goodreads lists specifically for Hindi literature in translation—people sometimes drop links to digital copies in the comments, especially for out-of-print titles. The selection is pretty random though; you might find Krishan Chander's short stories but not a popular novel like 'Gunahon Ka Devta'. It's a real patchwork.