Not able to send notifications to Android devices

I have registered an Android device in my notification hub.

I can even fetch the registration details properly.

Even the tags are correct.

But when i send the notification then it is not received by the Android device(It is working fine with iPhone-different payload).

Any help is appreciated.

Here is my code to send the notification.

NotificationHubClient hubClient;
hubClient = NotificationHubClient.CreateClientFromConnectionString("Connection String", "Hub name");
string tag = "RelevantTag";
var result = await hubClient.SendGcmNativeNotificationAsync("{ \"data\" : {\"msg\":\"Hello from Azure!\"}}", tag);