Local taxis (recognisable by their black and yellow livery) and autorickshaws have meters but these are effectively ornamental as most drivers refuse to use them. Delhi Traffic Police runs a network of prepaid autorickshaw booths, where you can pay a fixed fare, including 24-hour stands at the New Delhi, Old Delhi and Nizamuddin train stations; elsewhere, you’ll need to negotiate a fare before you set off.
Read more: http://www.lonelyplanet.com/india/delhi/transport/getting-around/local-transport#ixzz47