Receive callback from cutter element inside another gst-plugin

[Sagar]

hi,
    I am trying to create a gst-plugin using audiocheblimit to remove noise and then passing the output to cutter element to detect silence START\STOP.

The problem which I am facing is I dont know how to receive callbacks from cutter element inside another gst-plugin.
I have tried using g_signal_onnect(G_OBJECT(myfilter->priv->cutter_filter),"message",G_CALLBACK(cutter_callback_handler),myfilter);
but there is no signal emitter in cutter element called "message".

I understand cutter provides message callbacks on the bus element but I have no Idea how to get access to the bus element inside gst-plugin as I am new to writing gst-plugin

any help is appreciated.