AGRA, May 28 -- A video purportedly showing a group of around two dozen visitors singing 'bhajans' inside the Taj Mahal premises went viral on social media on Tuesday, prompting the Archaeological Survey of India (ASI) to seek a report from the Central Industrial Security Force (CISF).

Officials, however, said it was not yet clear whether the video was recent or old, as the timing of the footage could not be verified.

Senior conservation assistant of the ASI at the Taj Mahal, Kalandar Vij, said the video showed a group of visitors seated along the marble wall of the monument, appearing to clap and sing.

"It is not clear whether the video is old or recent, nor can it be confirmed what the group is singing as the footage has no audio. Ho...