Kasaragod District is the northernmost district in the southwestern Indian coastal state of Kerala. The district has a long history starting from pre-historic times to the modern period. The district's northern border Thalappady is located just 10 km south to Mangalore on the southwestern Malabar coast of India. Kasaragod town is located on the estuary where the Chandragiri River, which is also the longest river in the district, empties into Arabian Sea.