Fearing a jump in footfalls to deposit or withdraw cash following the demonetisation of 500 rupees and 1,000 rupees banknotes, banks will remain open this Saturday and Sunday and its staff will do overtime till 9 PM for the next three days to clear the rush.In a tweet, Economic Affairs Secretary Shaktikanta Das said for public convenience, banks will remain open on coming Saturday and Sunday. Banks also announced a slew of measures, including extension of banking hours, doing away with ATM charges and expanding credit limits to handle the expected huge rush to tender now defunct 500 rupee and 1000 rupee notes.Bankers have also been advised not to take additional leaves for the next one month, during which the government has asked holders of over 22 billion currency notes, that are no longer legal tender, to deposit them in bank accounts.