Google launches voice search in Delhi after the pilot work at Hydrabad. Using this new feature you can search Google from your phone either using voice or Sms. All you need to do is to call the Toll-Free number 1-800-41-999-999 from any mobile or landline.

You can get the information read for you or you can get the results through sms. But note that currently this service is avaible only to Delhi and Hydrabad phone numbers. Also availble only in English, Hindi and Telugu as of now.