How to Use Multiple Mobile Numbers on Whats App in Android ?

STEPS:-
 

1) Install titanium
backup from play store. (Root is required for this app).
2) Open it and give superuser permission..
3) Tap on switch profile in bottom right corner..
4) Here you have to create two data profiles with any name (eg. All and whatsapp2).
5) Again tap on switch profile and select all (main profile).
6) Now go to backup/ restore tab on top. Locate whatsapp.
7) Tap on whatsapp then swipe right for special features..
8) Tap on enable multiple profile for this app.
9) Confirm any prompt. This will store your current whatsapp profile to data profile ‘all’.
10) Now again go to overview tab and tap on select
data profile and select ‘whatsapp2’.
11) Now go to whatsapp and you can see the first
installation window. Register your second number there. And you are done..
12) For switching between numbers use titanium backup and switch
data profiles..
 

NOTE: You can use more than two numbers
by this method..