The 18233/18234 Narmada Express is a daily express train which runs between Indore city of Madhya Pradesh and Bilaspur city of Chhattisgarh. The name 'Narmada' signifies the largest river of Central India, Narmada River. As the train crosses holy river Narmada, the longest and most important river in Madhya Pradesh, so is named as Narmada Express.