<Tr> <Td> 2014 - March, 2016 </Td> <Td> 8.7% </Td> </Tr> <Table> <Tr> <Th> Quarter </Th> <Th> Interest Rate </Th> </Tr> <Tr> <Td> April, 2016 - June, 2016 </Td> <Td> 8.1% </Td> </Tr> <Tr> <Td> July, 2016 - September, 2016 </Td> <Td> 8.1% </Td> </Tr> <Tr> <Td> October, 2016 - December, 2016 </Td> <Td> 8.0% </Td> </Tr> <Tr> <Td> January, 2017 - March, 2017 </Td> <Td> 8.0% </Td> </Tr> </Table> <Tr> <Th> Quarter </Th> <Th> Interest Rate </Th> </Tr> <Tr> <Td> April, 2016 - June, 2016 </Td> <Td> 8.1% </Td> </Tr>

What is ppf account and how it works