1873

Bombay Tramway Co. Ltd. Started.

1874

Horse-Drawn Trams Introduced.

1905

Bombay Electric Supply & Tramway Co. Ltd. Started.

1907

First Tram ran on Electricity.

1909

Beaver Single Decker Cars Started.

1912

S. T. T. Cars Started.

1920

Double-Decker Tram Introduced.

1926

Single Deck Bus Services Started.

1934

Bus Services extended to the northern part of the City.

1937

Double Decker Bus Services Introduced.

1940

First Limited bus between Colaba and Mahim introduced.

1947

B. E. S. & T. Co. Limited Municipalized.

1949

Bus services extended to Western suburbs.
American Cars were introduced.

1955

Bus services extended to Eastern Suburbs.Luxury Coach services introduced.

1962

Trolley Bus Services introduced.

1964

Free Travel facility extended to Police Personnel.Tram services abolished.

1966

Tata Mercedes Benz Buses introduced.

1967

Articulated (Trailer) buses came into operation.

1968

Facility of Concessional fare to totally blind person introduced.Beaver Double-Decker buses introduced.

1970

Cometiesed Titan Buses Introduced.Cheetah Single Decker buses introduced.

1971

Trolley Bus services abolished.Seats reserved for Ladies in buses.Bangla Desh Relief fund Started.

1972

Silver Jubilee of Municipalisation.Tata Single Decker buses introduced.

1976

Bombay Suburban Transport Project Commissioned.

1981

Ferry Services started from Marve To Manori.

1984

Bus Coupons Introduced.

Operation extended to Navi Mumbai with Route 501Ltd.

1985

Articulated Buses withdrawn from operation.

Bus Coupons Discontinued

1986

Printing of "MARATHI" tickets started.

1990

Free Travel facility to freedom fighters residing in Mumbai, introduced.

1992

Automatic Bus Washing machines installed at Depots.

1994

Concessional ticket facility extended to student studying in Junior Colleges. Operation extended to Thane by extending Route 30Ltd.

1996

Single Decker Articulated Vestibule Buses Introduced.

1997

Environment Friendly Buses fitted with Compressed Natural Gas Engine introduced. Open Deck Bus introduced for site seeing of illuminated heritage buildings in collaboration with Maharashtra Tourism Development Corporation.

Introduction of Monthly Bus Pass scheme of selected routes. Luxury Bus services introduced.

1998

Air Conditioned Bus service introduced.New "Shivaji Nagar" Bus Depot commissioned.Automatic Fare Collection with help of contact-less cards (SMART CARD) introduced.

1999

2000

New Mulund Bus Depot Commissioned.
Monthly Bus Pass Scheme Discontinued

All Luxury Buses Discontinued w. e. from 1/12/2000

2003

2004

2010

2011

2014

Low Floor Bus Introduced, as a Pilot Project

Exclusive Bus Lane for BEST Buses from Mumbai-C.S.T to Mantralaya (approx 3.5 Kms)

Bus Pass Scheme with RF-ID based SMART CARD's is introduced.

Electronic Ticket Issuing Machines (ETIM) introduced on all the buses.

Commissioned Malad Bus Depot from 12th April 2014.

2016

Commissioned KalaKilla Bus Depot From 1st February 2016