Union Finance Minister Nirmala Sitharaman on Saturday travelled by a local train from Ghatkopar in Mumbai to Kalyan in neighbouring Thane district..The minister shared on X a few pictures of her journey by the local train, lifeline of the Mumbai Metropolitan Region..She interacted with fellow commuters during the 30-km ride, the social media post said..More than 65 lakh people travel by suburban trains in the Mumbai region every day.