Hello buddavijay,
This functionality is part of Network Configuration Manager,
The OOTB alert is based on the *configured from console" syslog message however you can add to t his to have it based on other syslog messages / traps
http://cdn.swcdn.net/creative/pdf/techtips/NTB_03_ConfigChange.pdf
http://www.solarwinds.com/documentation/en/flarehelp/ncm/content/cirrusagrtccd.htm
Thanks,
Tony