Sharing BSNL broadband via wifi

[yrana2002]

I have a MT882 router for the BSNL broadband connection that i have. Now i have 3 laptops at home and i want to use internet simultaneously on all three laptops.

I tried using windows Internet Connection sharing ( Keep a master laptop having ethernet connection to router.. and rest 2 laptops on wifi connection to master laptop, with internet sharing enabled).

I also have the option of buying a wifi router from BSNL themselves. Can you suggest me which one would be better for convenience or performance?