Why only Taxis are used in Mumbai?

In the Mumbai,We can only see the Taxis roaming around,Why not Auto Rickshaws? 

Answer of this is the Taxis are way more safer than the Auto Rickshaws.

In the most busiest city it is very common to see hazardous accidents,To provide more safety to the people Government has adapted Taxis as a local public transport in Mumbai

*Now lets know what is the history behind taxis

Taxis arrived in 1911 to complement horse cars. Black and yellow Fiat taxis are an integral part of the city's heritage and have been depicted in numerous Bollywood movies. Metered taxis ply throughout Mumbai and have a monopoly from Bandra to Churchgate on the Western line and Sion to Chatrapati Shivaji Terminus on the Central line. Beyond Sion and Bandra auto rickshaws are not allowed and one has to hire a taxi. However, between Sion to Thane and Bandra to Bhayandar, both Taxis and autorickshaws are available to transport passengers.

• Silver-Green taxis run by Meru and Yellow-Red by Gold cabs and Black by Mega Cabs
• Blue and silver air-conditioned metered taxis known as "Cool Cabs"
• Some private taxi operators provide yellow number plate cars for transportation
  

Mumbai is served by two intra-city highways: Old Mumbai-Pune Highway and Mumbai-Ahmedabad Highway.

(this information belongs to Wikipedia)

*Why Taxi"s are called " Taxi's "?

Word Taxi is a short form the the French word "taximètre",After that,The Germans named this device 'taxametre' 

*Who invented Taxi?

Gottlieb Daimler invented the very first Taxi in 1897.On 16 June 1897, the Daimler Victoria taxi was delivered to Friedrich Greiner, a Stuttgart entrepreneur who started the world's first motorized taxi company.

*When Taxi's brought to Mumbai

The Taxis were launched in Mumbai on, December 1909.