This Article will help you Change Nameserver of your domain from your client area.:
->To change Nameserver of your domain browse url http://client.ewebguu.com
->Provide your username and password to login into client area You will See Following Window
->Click on my domains link Now you will see all your registered domain by eWebGuru.com
After seeing carefully you will see 
icon on the right of each domain.
->This is your domain control panel link Click on this link You will find your domain details.
Now find the heading �NameServer� and change your desired nameserver and click on Save button.
For further reading click here
