> Simply download WhatsMap
> Now install WhatsMap in your android phone downloaded from above link
> After this open WhatsMap in your phone
> Now just enter your old WhatsApp Account number in WhatsMap and verify number
> Now open WhatsApp and clear all the data of your old number and create new account on WhatsApp you want to use as second account
> Now verify your number on WhatsApp
> That's all now you can easily use two WhatsApp account in same phone without any problem