After enduring weeks of sweltering heat, Bengaluru residents were treated to heavy downpours and thunderstorms on Saturday. But along with the much-needed relief, the city’s streets delivered an unexpected spectacle—certain roads appeared to be blanketed in thick, white, snow-like foam, leaving citizens both bewildered and amused.

Viral video fuels curiosity

A video capturing this peculiar sight quickly went viral on Instagram. Shared by a user named Milan, it shows a Bengaluru street near NIMHANS Dairy Circle covered in frothy foam. The overlay text reads, “Mysterious white foam covers Bengaluru roads after unexpected rainfall. What’s happening?” Milan jokingly captioned, “Bengaluru’s streets turned into a foam party after an unexpected summer rain! Any idea why?”

Netizens react with humor and science

The clip, now viewed over 4.5 million times, invited all sorts of reactions. Some offered scientific insights, while others leaned into humor. Several users pointed out that the foam likely came from soapnut trees (locally known as Shikakai), whose flowers mix with rainwater and get churned into foam by vehicle movement.
One user quipped, “Someone spilled Surf Excel on their way home!” while another warned, “Soapnut foam makes the road slippery—two-wheelers beware!”

Though the mystery was soon solved, the sight of foamy roads continues to entertain online audiences, highlighting one of Bengaluru’s quirky first-rain traditions.