See Intallation Setting
To install apps from the web, you need to enable your
mobile device to install apps from third-party places.
To do so, please open Settings, then choose Applications and make sure that the "Unknown sources" checkbox is checked.
Sikh Gurus History
|Chronology of Events part-1|
|Chronology of Events Part-2|
|Great Sikh Warriors|
|Chronology of Events Part-3|