@iamtulpin guess ur infected.. am not sure which virus..
but svchost.exe is a virus.. plz download this and run a check from a secure location
Stinger
this will find the viruses and take care of it.. after that do this..
Start->regedit
there navigate to Hkey_local machine\softwares\microsoft\windows\current version\run
there del any values stating SVCHOST (also run once)
do the same thing in Hkey_currentuser\softwares\microsoft\windows\curre nt version\run
(also run once) will update as soon as i get more info..