Union Urban Development Minister Venkaiah Naidu on Thursday appealed to citizens not to panic over scrapping on notes of Rs 500 and Rs 1,000 denominations, saying only those with black money will be affected.Naidu called criticism on the issue by the opposition useless and fact less."They (opposition) are making allegations just for sake of making allegations. No farmer or poor person will be impacted. Your Rs 500, Rs 1000 notes will not be invalid if your money is valid. You can exchange them till December 30. Only corrupt, black money holders, money launderers, terrorists and their sympathisers need to worry," said Naidu during the GRAM 2016 event here,On Wednesday, Congress Vice President Rahul Gandhi had targeted the government on the move, saying farmers, small shopkeepers and housewives were thrown in utter chaos.