The official lyrical video and full episodes provide the best audio-visual experience:
While "free download" sites are often unreliable or unofficial, you can stream the full title track for free on several legitimate platforms:
One of the biggest challenges for fans has always been the availability of the full version of the title track. During the show's run, the song was often aired in snippets or as background music during pivotal scenes. This scarcity turned the full audio into a sort of "hidden gem" that fans were desperate to own.
As for downloading the song for free, I would recommend using legitimate music streaming platforms such as Gaana, JioSaavn, or Wynk Music, which offer a vast collection of Indian songs, including the Ek Boond Ishq title song.