Wake up application on tapping Push Notifications in Xamarin Android - xamarin

Question

I am trying to integrate Push notifications to the application.
The behaviour i am trying to implement is waking up the app from background and resuming to previous state.
But the control always come to protected override void OnCreate (Bundle bundle)
initially and then to OnResume upon tapping the notification message instead of coming
to protected async override void OnResume().
Because of this the app is always relaunching instead of waking up.
How can i just wake the app instead of relaunching when tapped on notification.?
Here is how the notification is created.
private void CreateNotification(string title, string desc, string type)
{
Random random = new Random();
int id = random.Next(9999 - 1000) + 1000;
const int pendingIntentId = id;
const int notificationId = id;
var startupIntent = new Intent(this, typeof(MainActivity));
var stackBuilder = TaskStackBuilder.Create(this);
stackBuilder.AddParentStack(Java.Lang.Class.FromType(typeof(MainActivity)));
stackBuilder.AddNextIntent(startupIntent);
var pendingIntent =
stackBuilder.GetPendingIntent(pendingIntentId, PendingIntentFlags.OneShot);
var builder = new Notification.Builder(this)
.SetContentIntent(pendingIntent)
.SetContentTitle(title)
.SetContentText(desc)
.SetSmallIcon(Resource.Drawable.appicon);
var notification = builder.Build();
notification.Flags = NotificationFlags.AutoCancel;
var notificationManager =
GetSystemService(NotificationService) as NotificationManager;
notificationManager.Notify(notificationId, notification);
}
Other scenarios like when the app is not running and in foreground are working as expected.