In his article, 'Codification of Vedic domestic ritual in Kerala: Pārvaṇa-sthālīpāka', in the International Symposium, The Book , Romania, 20-24 September 2010, Asko Parpola writes, "In any case, the Nampūtiris were in Kerala in the 7th century CE, when the grandfather of the great Jaiminīya commentator Bhavatrāta migrated to Kerala from the village of Vasiṣṭhakuṭi (modern Tiṭṭaguḍi near Vṛddhācalam) in the Cōḻa kingdom (cf. PARPOLA 1984)." (Unfortunately the reference PARPOLA 1984 seems to be missing.)