<Tr> <Td> 6 </Td> <Td> Tiruppur </Td> <Td> Tiruppur </Td> <Td> 829,778 </Td> </Tr> <Tr> <Td> 7 </Td> <Td> Erode </Td> <Td> Erode </Td> <Td> 498,129 </Td> </Tr> <Tr> <Td> 8 </Td> <Td> Tirunelveli </Td> <Td> Tirunelveli </Td> <Td> 473,637 </Td> </Tr> <Tr> <Td> 9 </Td> <Td> Ambattur </Td> <Td> Tiruvallur </Td> <Td> 466,205 </Td> </Tr>

Which of these hill stations literally means three rivers in tamil and malayalam