<Tr> <Th> Preceded by </Th> <Td> Constituent Assembly of India </Td> </Tr> <Tr> <Th_colspan="2"> Leadership </Th> </Tr> <Tr> <Th> President </Th> <Td> Ram Nath Kovind Since 25 July 2017 </Td> </Tr> <Tr> <Th> Chairman of Rajya Sabha (Vice-President) </Th> <Td> Venkaiah Naidu Since 11 August 2017 </Td> </Tr>

What are the functions of the indian parliament