Within the medieval Chera state Valluvanad was one of the constituent chiefdoms of the
Chera kingdom in Kerala (until the 12th century CE). He commanded an entire contingent of Kerala military personnel under the Chola prince
Rajaditya. An inscription at the Shiva temple in
Thiruvotriyur (mid-10th century CE), describing the life of Vellan Kumaran, states that he, the son of Rajasekhara, chieftain of "Vallabha Rashtra" in Kerala, went to the Chola country after completing his education in his boyhood and became a loyal subordinate of prince Rajaditya. Another record from Gramam,
South Arcot, mentions that he was born at "Nandikkarai Puttur" in Malai Nadu. He was probably one of the few Chola commanders to have survived the
battle of Takkolam in 948/49 AD. The "Hundred" organization (the local militia) of Valluvanad was known as the "aru-nurruvar" (the Six Hundred). In another instance, Irayiravar, a Valluvanad chief, appears in three temple transaction-related inscriptions from Avattiputhur (present-day
Avittathur near
Kodungallur), highlighting his involvement in regulatory functions beyond the borders of his chiefdom. Valluvanad continued to assert its presence, and a ruler of Valluvanad is next mentioned as a witness in the
Viraraghava Copper Plates dated to 1225 CE. In the subsequent period, the Brahmins of
Sukapuram are known to have been supporters of the Valluvanad rulers. According to tradition, in his desperation to succeed at Tirunavaya, the Zamorin even sought divine intervention by propitiating the Tirumandhamkunnu Bhagavati (the goddess).
Blood feud with the Zamorins In retaliation for major losses to the
Zamorin of Calicut—most notably the seizure of the port of
Ponnani and the sacred
Tirunavaya—the Vellattiri began dispatching bands of suicide warriors, known as "Chavers", to ritually challenge and attempt to kill the Zamorin during the
Mamankam festival. This commitment was a symbolic effort to reclaim their rightful authority over the ceremony. According to historians, "... the caver[s] of Valluvanatu died fighting to avenge the death or defeat of their master and died fighting regularly at Tirunavaya for a long period. It means that the caver[s] died fighting at Tirunavaya even after many generations. Thus it takes the form of blood feud ..." The Raja undertook to pay a sum of Rs. 38,410.20 to the Company within the year (the sum was later increased to Rs. 41,594.20). ==The royal family==