one time have formed part of ancient Kerala (Chera dynasty), where the western coastal dialect of Old Tamil (Karintamil) was spoken. It must have separated from Tamilakam sometime between 300 CE and 500 CE, when the Kadambas invaded the northern portions of Chera kingdom. No definite historical record relating to Tulu Nadu, other than those were found from Sangam literature, have been found of earlier date than 8th or 9th century CE. Alupa dynasty Ptolemy, the 2nd-century geographer identifies the Tulu Nadu region as Olokhoira which is widely believed to be a corruption of the term Alva Kheda, 'the land of the Alvas'.[2] Historically, Tulu Nadu included the two separate lands of Haiva and Tuluva. The longest-ruling and oldest known native dynasty of Tulu Nadu was that of the Alupas ( 5th – 14th century CE). Their kingdom was also known as Alvakheda. They initially ruled independently and later were the feudatories of the prominent dynasties. The Kadamba dynasty of Banavasi was the earliest, under which the Alupas flourished. Later the Rashtrakutas of Manyakheta, Chalukyas of Badami, Chalukyas of Kalyani, Hoysalas of Dwarasamudra (Halebidu) and Rayas of Vijayanagara were the overlords. The Alupas, however, were independent and their subordination was nominal at best. They ruled until the Vijayanagara Empire took control of Tulu Nadu from 14th to the 17th centuries During the rule of Vijayanagara, Tulu Nadu was administered in two parts – Mangaluru Rajya and Barkuru Rajya. Tulu Nadu was governed by the native feudatories of the Vijayanagara Empire until the 18th century. These feudatories gained power towards the end of the Alupa period. An Old Malayalam inscription (Ramanthali inscriptions), dated to 1075 CE, mentioning king Kunda Alupa, the ruler of Alupa dynasty of Mangalore, can be found at Ezhimala (the former headquarters of Mushika dynasty) near Cannanore, in the North Malabar region of Kerala. Notable among them were the Chowtas of Ullal and Moodabidri (), Ajilas of Venur (c. 1418–1800 C.E), the Savanta or Samantha Rajas of Mulki (c. 1411–1700), the Bhairarasa Odeyas of Karkala (c. 1240–1650 C.E), the Tolaharas of Suralu (c.1139-1800 C.E), the Bangas of Bangadi (c. 1410–1800 C.E.), the Rajas of Kumbla (c. 12th century – 1800 C.E) and the Rajas of Vitla (c. 1436–1800 C.E). The region became extremely prosperous during the Vijayanagara period with Barkur and Mangalore gaining importance. After the decline of the Vijayanagara Empire, the Keladi Nayakas of Ikkeri controlled much