Look for user "RajaFanOfficial" or "SouthernMelody". These are massive collections (e.g., "Ilaiyaraaja - The First 1000 Songs - 6GB ZIP").
Start with the Google search operator: intitle:"Ilaiyaraaja" intitle:"ZIP" "320kbps" -torrent -spotify and click the first result that is not a blogspot ad. Happy listening! Did you find a working link? Share the name of the collection in the comments (without the URL) to help other Raja fans. download ilayaraja songs collection zip file better link
Is there anything a "better link" for an Ilaiyaraaja ZIP file actually means? Let's decode it. Look for user "RajaFanOfficial" or "SouthernMelody"