Samsung has started rolling out Android 4.0.4 update in India. This new update will brings new features such as performance improvements, signature unlock using the S Pen, Pop up play feature. This feature will allow Note users to play a video on their phone in a floating window.
This update is about 111MB and is available OTA (Over the Air) and via Samsung Kies.
To check for the update manually go to the Settings, About, Software update.