Thanks Michael.
The articles were useful in understanding the push notification mechanism in netweaver gateway.
I am working on an SAPUI5 application which will receive an alert (i.e. Notification) from the gateway system in mobile and once the alert is received the user has to send an acknowledgement which will contain information like mobile and user ID as an response back to the system.
Kindly provide your inputs on how to achieve this functionality. Sending an acknowledgement back to the system using SAPUI5.