I have not found the song directly on Masstamilan, but I have information about Masstamilan as a platform from several search results. I can mention that Masstamilan is an app for downloading Tamil MP3 songs and include details about its features.
The song (often spelled "Saarumathi") is a soulful Tamil melody performed by the renowned playback singer P. Unnikrishnan . It is featured in the 1997 film Saathi Sanam .
600 words
"Saarumathi neethan santhamadi... Paaru mathi nee en sonthamadi" Why It Stays Popular
: Singer P. Unnikrishnan brings an effortless classical weight to the track. His precise modulation conveys yearning and heartbreak, aligning beautifully with the lyrical prose.