MUMBAI, Jan. 24 -- The railway budget on February 1, the first after the Bharatiya Janata Party-led government came to power in the Centre for the second time, is likely to include approvals for projects that will expand the suburban railway network of Mumbai to the Mumbai Metropolitan Region. The projects include operation of suburban local trains between Panvel and Vasai stations, construction of new foot overbridges (FOB), escalators, elevators, construction of the fourth railway lines between Karjat and Lonavala, and Kasara and Igatpuri....