hi umesh, 
 I too brought Huwai EC1260 on 2nd Nov.I have solution for us to prevent http://www.reliancenetconnect.co.in after getting connected. 
    1.Explore to "C:\Program Files\Reliance Netconnect - Broadband+\plugins\XFramePlugin" or the nstallation folder if it differs from default folder. 
    2.Open file "Config.xml" with notepad or any text editor. 
    3.Go to line no.20 and simply delete URL "http://www.reliancenetconnect.co.in" and save the file. 
 Thats all problem solved. 
 I assume before doing this hack close Reliance Netconnect application. 
Enzoy!