Mobile

Bharat Sanchar Nigam Limited (BSNL) has offered an extension to its so-called free dial-up internet surfing facility to subscribers until December 2008.
This is the company's 'account-free' Calling Line Identification (CLI) based 'Net One' dial-up internet service. This means, if you use a BSNL landline, you need not pay anything to get started on the internet.
To start surfing:
1. Connect your telephone jack to your PC or laptop.
2. Initiate a dial-up connection with the access code 172222.
3. Enter a username (STD code without zero + your telephone number), followed by a password of your choice.
Once you're connected, you will be charged only for the local calls -- Pulse rate@450 seconds from 0730-2230 and 900 seconds from 2230-0730. You'll receive the Internet bill along with your telephone bill.

Source: Techtree.com