This is usually the best place for independent or electronic artists like Santosha. You can purchase the track and choose "FLAC" as your download format.
If you find a site offering a direct .rar or .zip download for this specific file:
If you do download a compressed folder, run it through a virus scanner before opening it.
The most reliable way to get high-fidelity (FLAC) files is through platforms that specialize in lossless audio: