Depending on the city/state, taxis can either be hailed, booked through applications, or can be hired from taxi-stands. In cities such as Bangalore, taxis need to be hired from taxi stands or online, whereas in cities like Kolkata and Mumbai, taxis can be hailed on the street. There are additional surcharges for luggage, late-night rides, and toll taxes are to be paid by the passenger. Thanks to the booming economy but due to disparities in income many types of taxis have come up. For example, in Delhi there are 5 types of taxis. Auto rickshaws (most affordable), Normal Taxis, Radio Cabs, White Taxis, and Tourist Taxis. In areas like Noida and Gurgaon, auto rickshaws are banned thus giving the taxis a monopoly. Chandigarh also has a well-established system of modern radio cabs.