00506pab a2200145 454500008003600000100002100036245009100057650002000148650005300168650004800221650001700269650004100286700002000327773001300347180718b   xxu||||| |||| 00| 0 eng d  aDatta, Debabrata  aCity bus service in Calcutta: a comparative analysis between private and public sector  a Transportation  a South Bengal State Transport Corporation(SBSTC)  a Calcutta State Transport Corporation(CSTC)  a Bus Service  aTransportation - India - West Bengal  aSarkar, Debasis  aNagarlok