STEP 1 :- First of all, go to BSNL PORTAL website. STEP 3 :- When you will click on sign up link then a form will appear just fill that form and click on Submit icon as shown in image below:-
Note:- If you cannot find Account number and Wimax number then see your bill as in image below:-
If you still have any problem regarding this issue then feel free just ask in comment box We will reply as soon as possible. Thanks.