How to use WIFI connection in government laptop

First thing after i got the laptop was to go through bunch of manuals in English and Tamil scouting information about the WIFI connectivity in the laptop given by the Tamilnadu government. First i saw info encouraging that there may be a internal wifi modem but to my disappointment i found out while using that there is no WIFI card in the laptop.
But always there are alternative ways that you could use to get back the net connection in your laptop.

1. You could get your laptop inserted with a WIFI card in any laptop servicing centre.
2. You could use data card connections from any of the mobile operators.
3.If you have net connection in your mobile , you could use PC suite for your mobile to get back net connection on your laptop.
4. You could use a DSL cable to connect modem and the laptop for using Internet in your laptop.
5. You could get an WIFI dongle which is available from rs. 350 to connect to Internet.
6. And guys, if you've got an android  phone you've struck gold. Ya. You could use your android device as a wifi modem that could forward the modulated WIFI signal back to your laptop and demodulate back the signal to the modem itself. Thereby you could use your existing WLAN connection for operating in a laptop.
For using this method you have to install an application called Easytether in your android device. Easytether is an free application available on the android market. After installing easy tether on your android device, you have to install another syncing software on your laptop. Then after you connect your android device to the laptop using an USB cable, you could easily get access to Internet connection on your laptop.

Friends, If you have any queries please comment...