How to Install Whatsapp on ubuntu :
Get The Ubuntu Play Store
Ubuntu play Store Allows you to install almost all top rated 3rd party applications which every user installs after every Ubuntu install , its a handy and powerful tool developed by Keshav Bhatt which allow you install third party applications and paid applications with few clicks.
Get latest nightly build version from here :
Download for Ubuntu 14.04 64-bit
Download for Ubuntu 15.10 64-bit
Download for Ubuntu 16.04 64-bit
download suitable package and install with gdebi package installer. for more – read this
Click on Whatsapp-desktop and install the client .
Enjoy 🙂