The morning peak hours on the Harbour line went for a toss after a Vashi-CST train experienced technical troubles. The incident occurred at around 8:05am when this CST bound train underwent 'Unit' failure.

Sources said that the trains were stalled at Kurla station and services between Kurla and Chunabhatti were stopped. Later Kurla-Panvel shuttle services were also being operated. "Announcements were being made asking people to take the main line from Kurla onwards," said a CR official.