Due to deteriorating law & order situation and heavy disruption of traffic in Kokrajhar region over North East Frontier Railway, T.No.12507 Ernakulam – Guwahati Express scheduled to leave Ernakulam Jn. at 21.15 hrs. today (24.7.2012) and passing through Chennai Central at 09.30/10.00 hrs. on 25.7.2012 is cancelled.