In that case it effect
1) The CLT-SRR passenger so the connection SRR-CBE passenger also.
2) Mangala Express.
Now it is effecting only Island express.
That also when it is stopping stations like pudukkad...
more... or irinjalakkuda jan shatabdi overtaking that.
If both Kerala Express and jan shatabdi are running on time, there wont be any disturbances.
Kerala should pass ERN by 9:25 at that time Jan shatabdi would be reaching aluva.
But most of the time Jan shatabdi is following Kerala from ankamaly to Ernakulam.