I don't understand what you mean by spotify version, it's a website. SoundCloud
is the most authoritative source. While they typically sell individual tracks (approx. ₹4–10 per song), they offer high-quality, virus-free files. GitHub Repositories Download All Old Hindi Songs Zip File
Where can one find digital versions of old Hindi songs(50s and 60s)? 6 May 2020 — I don't understand what you mean by spotify