The Sitamarhi-Kolkata Mithilanchal Express was flagged off by Sitamarhi MP Arjun Rai on Friday. The services of this train has been extended from Darbhanga. Addressing a meeting at Sitamarhi railway station, the MP congratulated the railway minister and officials concerned for the launch of this train for the convenience of Kolkata-bound passengers. He said a new railway line between Sitamarhi and Muzaffarpur will become functional soon.