If you are referring to the theme or a popular song from a specific Sagar series or movie, one iconic tune that fits somewhat with the description and is globally recognized is the "Lala La Lala" or more accurately, the theme from "Sagar" which doesn't perfectly match your lyrics but could be considered close in context.
If you want to feel young and in love again, just hum "Laa la la la laa..." – and you’re there. lala la lalaa falling in love tune from sagar m high quality
You can find high-quality versions of this theme and the songs it appears in on major platforms: If you are referring to the theme or
It remains a highly searched audio snippet for people wanting a pleasant, nostalgic ringtone. Timeless Appeal: nostalgic ringtone. Timeless Appeal: