BUSES
Introduced way back in 1926 the red double-decker and single buses are operated by Bombay Electric Supply and Transport (BEST) and cover the entire length and breadth of the city. Maneuvering through Mumbai's narrow and congested roads they are today one of the most vital lifelines of the city. Minimum fare payable is Rs.2/- and the maximum is Rs.12/50. With a fleet of 3600, and about 5 million people using it daily, operating on over 400 routes covering 6 lakh kilometers the BEST is the largest municipalized transport system in India. Recently new "City buses" have been added. This new addition is 40 seater and air conditioned with driver control doors similar to the ones operating in major European countries.
BEST Buses   Detail routes & other information.

TRAINS 
The trains carry millions of commuters each day from south of the city to the extreme north and beyond the city limits. One line starts from CST (Central Railways) running up to eastside as far as Thane. The other line (Western Railways) starts from Churchgate and goes up to Vasai. Trains leave every few minutes. Minimum fare is Rs.5.00/-
Suburban Rail Map of Mumbai  

TAXIS 
The city has a huge fleet of black and yellow top metered taxis. The minimum fare is Rs.11/- per kilometer. Cool Cabs Blue color air condition taxis ,are a recent addition and are few and also available on phone 613 1111. The minimum fare is Rs.14/-.

AUTOS
Autos  are available only in the suburbs. Minimum fare is Rs.7.50/-.

PRIVATE TAXIS
Private Taxis with drivers can be rented from ITDC counter at Government Tourist Office, Sahara International Airport, or through any travel agents. Minimum fare Rs.700/- per day.