Does the Narmada flow through Deccan plateau?

Yes, the Narmada river flows through the Deccan Plateau. The Narmada is one of the major rivers in peninsular India and it is the 5th longest river in the country. It rises in the Amarkantak Plateau in the state of Madhya Pradesh and flows westwards through the states of Madhya Pradesh, Maharashtra, and Gujarat before draining into the Gulf of Khambhat, an arm of the Arabian Sea. The river forms the traditional boundary between North India and South India and its basin is one of the most fertile regions in the country. The Narmada is considered a sacred river by Hindus and is often referred to as the "Life Line of Madhya Pradesh".