If you absolutely need a standalone MP3 collection (to put on a USB drive for a car stereo that lacks Bluetooth), here is the legal method:
This way, you get the zip file you wanted, the audio is perfect, and you have respected the genius who gave you the music. Ilayaraja Hits Free Download Zip File
YouTube has the most exhaustive collection, including rare BGM (Background Scores) and live concerts. With a Premium subscription, you can download entire albums or playlists legally to your phone. If you absolutely need a standalone MP3 collection
These Indian-specific platforms have fantastic categorization. You can filter by "Ilaiyaraaja Hits" and download them legally via their paid tiers. This way, you get the zip file you
Regarding zip files, be cautious. Zip files can contain malware or viruses, and downloading them from untrusted sources can harm your device. Always ensure that you're downloading from a reputable source.