TheKayamkulam vaal (lit. 'Kayamkulam sword') is a double-edgedsword that was used by the rulers and soldiers (mostly inTravancore), inKayamkulam, a princely state of India. An example is on display at theKrishnapuram Palace Museum inKayamkulam.[1]
It is said to have been used by the Kayamkulam Rajas in the 18th century.[2]