00311pab a2200121 454500008004000000100001700040245005300057260000900110300001200119362001100131650001300142773003400155180718b2006   xxu||||| |||| 00| 0 eng d  aRavibabu, M.  aViability of surface rail for urban mass transit  c2006  ap.1506.  a22 Apr  aRailways  aEconomic and Political Weekly