NEW DELHI/MUMBAI -- Indian cities are vastly expanding their subway networks to reduce road congestion and gasoline consumption while encouraging commercial and residential development as urban planning catches on in the country.
This year, the Delhi Metro opened extensions to such service as the Pink Line running from the capital's northeast to its south and the Magenta Line, which connects the domestic terminal of Indira Gandhi International Airport to Nehru Place, a commercial area known as India's biggest electronics district.
