new delhi warning black money holders of stringent action including imprisonment after september 30 prime minister narendra modi on saturday said those with undisclosed wealth most of which is parked in jewellery and real estate should come clean to sleep peacefullyat a function jewellers organised to felicitate him modi said he is aware of people going to bullion merchants with cartload of money and a message has to be delivered to them to come clean using the onetime compliance window closing on september 30stating that people have been jailed in the past for evading taxes he said the government should not be forced to resort to the same after september 30aur us paap ko karna nahi chahata hu jo september 30 ko mujhe karna padega i do not want to commit the sin which i will have to do after september 30 against black money holders he saidunder the income declaration scheme ids which opened on june 1 black money holders can come clean by declaring the assets by september 30 and paying tax and penalty of 45 per cent thereafter those who fail to take advantage of the scheme will have to face stringent actions including imprisonmentthe income tax department has already identified 90 lakh high value transactions without pan as part of the scrutiny the department will initially issue 7 lakh letters to those who have indulged in such transactions seeking their details