Auto install Apps in micromax A116 (Canvas HD)

[AC Question]

In my phone when i have start wifi,some of apps start to download and install automatically.I thought it is virsu so i had do factory reset but problem still persist.
some time wifi and data connection also started automatically and due to this phone get hanged.My phone android version is 4.1.2.please provide some solution.

 

[B. Diddy]

Welcome to Android Central! Which apps are installing? Are they updates to previously installed apps, or brand new installations?