In year 2008 on 10th Nov ClubHack conducted a wardrive in Pune city.  The report can be found at http://www.wardrive.in/2008/11/wardriving-pune/
To take a stock of situation, ClubHack did a wardrive again on 9th December 2009 and the findings are as below

Still 50% of the APs were Open. This includes lot a hotels in Pune. As a [...]

AiroMap is one of the best and easiest Wifi Mapping software for PocketPC/Windows Mobile, based on PeekPocket 1.5.
All it requires is a WIndows Mobile based handheld device wqith support of Wi-Fi and GPS.
The results can be saved in KML format which can be plotted on Google Earth/Map
Features overview:
* Precise GPS Mapping algorithm (handles variable precision [...]