Monsoon knocked on the doors of Mumbai on Thursday evening, with a few suburbs outskirts receiving a spell of pre-season showers. But the effect spilled onto the city roads that saw jams on many stretches. Railway services also saw some disruptions. 

Officials said these are pre-monsoon showers. There were showers in suburbs and extended suburbs. The trans-harbour line was affected as an overhead wire got snapped near Vashi station, hitting services during peak hours, with crowds swelling across stations on the trans-harbour line.