Hack Many BSNL Accounts, You Will Not Be In any Danger For Doing This .. !
* Know Your IP Address :- http://www.whatismyip.com/
*Download A P Scanner :-http://www.angryziber.com/w/Download
*Now Open IP Scanner.
*Go To Options Tab\ Select Port\ And Enter 80 In The 1st Option. (Enter Port To Scan)
*In The Hostname Option Paste Your IP Address .
*Click On The IP Button Next To The HostName(The One With A Green Arrow Pointing Up Words.)
*After You Click On It, It Will Automatically Fill The IP Range Option .
*In The 1st Option Let It Be Your IP And Then In The 2nd Option Fill IP Greater Than Yours .(Eg. IP Your IP Is 59.94.40.213 Then In The Next Option Fill As 59.94.45.213) .
*Click On Scan, It Will Give A List Of IPs .
*Select IPs With Green Light On The Left .
*Then It Will Ask For Username And Password .
*Paste :- Username : Admin & Pass : Admin .
*If The Above Pass Doesn't Work, Try It On Some Other .
*When The Page Is Open, Go To Home And Click On "WAN"
*You Will Get The UseId And Pass In Coded Form .
*You Can Use Any Good Password Revealer(http://www.scanwith.com/X-Pass_download.htm)
*After Doing That Extract The Software Mentioned Above .
*Then Open "X-Pass", Drag The X Icon Were The Password Is In Coded Form .
*Check The Passes Here : http://10.240.160.195/webLogin.jsp

You Are Done, Tried With BSNL . Hope You Try It With Other Networks .