A newly opened stretch of Mumbai’s Coastal Road plays a humming sound of the Oscar-winning song “Jai Ho” from the 2008 movie Slumdog Millionaire when cars drive along at the mandated speed.

The road, engineered to play a tune at set speeds, was meant to promote safety. But within a couple of weeks, it has turned into a source of daily frustration for people living in the busy area. Maroosha Muzaffar and Noopur Jambhekar report