How to install whatsapp on android smartphone

How to install whatsapp apk on android phone. Here a short video which explains the full installation process of whatsapp in a android smartphone step by step.

Very easy steps are shown in the video. Here for quick grasp,

1. Go to official whatsapp download page for android.
2. Download the apk file.
3. Install it in your phone.
4. verify your phone number.
5. Enjoy.