oconfigure data one ZXDSL 531B modem for broadband connection?

Heya a pal of mine asked me this and here is the answer, i here by provide with two links  that totally explains how to do it!
http://www.techlineinfo.com/configure-zte-zxdsl-531-type-2-4-lanwireless-lan-modem-for-bsnl-broadband/

more....
the below is an bsnl forum answer!

http://broadbandforum.in/tata-indicom-broadband/37293-possible-configure-data-one-zxdsl-531b-modem-my-tata-broadband-connection/

hope you like it!
@kar