The Central Railway (CR) will commence regular service of Suvidha Superfast Express train between Patna and Mumbai from tomorrow.A spokesperson from CR said Suvidha Superfast Bi-weekly Express Train will leave Patna every Sunday and Wednesday from tomorrow at 1 pm and arrive Chhatrapati Shivaji Terminus Mumbai at 4.05 pm next day.While Suvidha Superfast Bi-weekly Express will leave Chhatrapati Shivaji Terminus Mumbai on every Tuesday and Friday from 11 August at 11.05 am and arrive Patna at 3.35 pm next day.