Since the end of August/2009 Zylog has started giving a semi-wired (same as wi-max) connection in CHENNAI at the speed of 1 mbps unlimited and the cost is Rs/-550 per month.
Once u call them up, they will ask whether u got LAPTOP or DESKTOP... juz tell them that u got DESKTOP so u can get a WI-Max connection free.
If u says laptop they will give u a WI-FI zone password.
Now the connection is limited to ADYAR, BESANTH NAGAR, GUINDY and THIRUVANMIYUR

I am posting an image of the site as am not allowed to post the other site URL over here.

Toll Free: 180030000555,
Mobile : 09840820566, 09500145114