<Tr> <Th> Material </Th> <Td> Copper </Td> </Tr> <Tr> <Th> Discovered </Th> <Td> 29 December 1912 Nidhanpur </Td> </Tr> <Table> <Tr> <Td> Part of a series on the </Td> </Tr> <Tr> <Th> History of Kamarupa </Th> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Th> Ruling dynasties </Th> </Tr> <Tr> <Td> Varman dynasty (350--650 CE) (show) <Table> <Tr> <Td> Pushyavarman </Td> <Td> 350--374 </Td> </Tr> <Tr> <Td> Samudravarman </Td> <Td> 374--398 </Td> </Tr> <Tr> <Td> Balavarman </Td> <Td> 398--422 </Td> </Tr> <Tr> <Td> Kalyanavarman </Td> <Td> 422--446 </Td> </Tr> <Tr> <Td> Ganapativarman </Td> <Td> 446--470 </Td> </Tr> <Tr> <Td> Mahendravarman </Td> <Td> 470--494 </Td> </Tr> <Tr> <Td> Narayanavarman </Td> <Td> 494--518 </Td> </Tr> <Tr> <Td> Bhutivarman </Td> <Td> 518--542 </Td> </Tr> <Tr> <Td> Chandramukhavarman </Td> <Td> 542--566 </Td> </Tr> <Tr> <Td> Sthitavarman </Td> <Td> 566--590 </Td> </Tr> <Tr> <Td> Susthitavarman </Td> <Td> 590--595 </Td> </Tr> <Tr> <Td> Supratisthitavarman </Td> <Td> 595--600 </Td> </Tr> <Tr> <Td> Bhaskaravarman </Td> <Td> 600--650 </Td> </Tr> <Tr> <Td> Avantivarman </Td> <Td> Unknown </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> Mlechchha dynasty (650--900 CE) (show) <Table> <Tr> <Td> Salasthamba </Td> <Td> 650--670 </Td> </Tr> <Tr> <Td> Vigrahastambha </Td> <Td> 670--680 </Td> </Tr> <Tr> <Td> Palaka </Td> <Td> 680--695 </Td> </Tr> <Tr> <Td> Kumara </Td> <Td> 695--710 </Td> </Tr> <Tr> <Td> Vajra </Td> <Td> 710--725 </Td> </Tr> <Tr> <Td> Harshavarman </Td> <Td> 725--745 </Td> </Tr> <Tr> <Td> Balavarman II </Td> <Td> 745--760 </Td> </Tr> <Tr> <Td> Salambha </Td> <Td> 795--815 </Td> </Tr> <Tr> <Td> Harjjaravarman </Td> <Td> 815--832 </Td> </Tr> <Tr> <Td> Vanamalavarman </Td> <Td> 832--855 </Td> </Tr> <Tr> <Td> Jayamala </Td> <Td> 855--860 </Td> </Tr> <Tr> <Td> Balavarman III </Td> <Td> 860--880 </Td> </Tr> <Tr> <Td> Tyagasimha </Td> <Td> 890--900 </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> Pala Dynasty (900--1100 CE) (show) <Table> <Tr> <Td> Brahma Pala </Td> <Td> 900--920 </Td> </Tr> <Tr> <Td> Ratna Pala </Td> <Td> 920--960 </Td> </Tr> <Tr> <Td> Indra Pala </Td> <Td> 960--990 </Td> </Tr> <Tr> <Td> Go Pala </Td> <Td> 990--1015 </Td> </Tr> <Tr> <Td> Harsha Pala </Td> <Td> 1015--1035 </Td> </Tr> <Tr> <Td> Dharma Pala </Td> <Td> 1035--1060 </Td> </Tr> <Tr> <Td> Jaya Pala </Td> <Td> 1075--1100 </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> </Table> <Tr> <Td> Part of a series on the </Td> </Tr>

Who were the kayasthas according to nidhanpur inscription