Subject: Re: [ILUG-BOM] OT - Govt. rules regarding public wifi hotspots 2011/1/16 Raj Mathur (राज माथुर) raju@linux-delhi.org:
Actually, if you run an open WiFi you are technically an ISP and need a licence.
I don't know how current it is, but there is a paper by DoT on this. http://drupal.airjaldi.com/system/files/Gazette+(+2.4+GHz)_Outdoor.pdf
Also, have a look at airjaldi. They have an extensive outdoor wifi setup.
guru