NEW DELHI: Undisclosed foreign assets amounting to Rs 3,770 crore were disclosed in 638 declarations before the one-time black money compliance window that closed yesterday, an issue on which political sparring started immediately."638 number of declarations have been received under the compliance window declaring undisclosed foreign assets amounting to Rs 3,770 crore. These figures are subject to final reconciliation," the Finance Ministry said in a statement.It added that tax at the rate of 30 per cent and penalty at the rate of 30 per cent is to be paid by December 31, 2015.Soon after the disclosure of the total amount, government declared that it would initiate "action" against those who have not disclosed their black money and assets stashed abroad.The government disclosure immediately drew derisive reaction from Congress which said the "hollowness" of Prime Minister Narendra Modi's claim on black money "stands exposed before the entire country".Questions were also raised over the claim made by Modi in his Independence Day address in which he had said that Rs 6,500 crore of undisclosed foreign assets have been declared under the compliance window of the new law.Congress spokesman Randeep Surjewala referred to Modi's Lok Sabha election campaign speeches in which he had reportedly said that black money to the tune of Rs 80 lakh crore was stashed abroad and his government would bring it back in 100 days of coming to power. He had also promised to deposit Rs 15 lakh into the bank account of every Indian."What we have today after the passage of black money Bill and 16 months of NDA government taking over is only Rs 3,770 crore," he said adding that the then BJP President Rajnath Singh had also made a similar solemn pledge.In Patna, Finance Minister Arun Jaitley hit back at critics saying the sum of Rs 3,770 crore has been declared through the compliance window under the new anti-black money law and "that Rs 6,500 crore was different"."Before calling it a lie you should first clear your understanding, especially when you are associating the word lie with the Prime Minister."It is lack of understanding on your part," he told reporters when he was questioned about the actual declarations and the Prime Minister's Independence Day remarks on the issue.Revenue Secretary Hasmukh Adhia said the tax department will initiate "action" against those who have not disclosed their black money and assets stashed abroad as the compliance window has closed."Whatever has come, we accept it and now onwards we would start the action against those people who have not declared any asset and about whom the information would come to us," he told reporters here.Adhia said the window was the only opportunity for people to come clean in this regard and the government had no particular figure of money in mind that would come out after this 90-day exercise that finished yesterday.The Finance Ministry had added that these figures, as of now, are "subject to final reconciliation."A tax at the rate of 30 per cent and a separate penalty at the rate of 30 per cent has to be paid by December 31, 2015 by these declarants after verification by the tax department.The compliance window saw a hectic rush on the last day yesterday as declarants made a beeline to meet the deadline at the only I-T office designated here for the task.The Finance Ministry said the anti-black money law provided for a compliance window for a limited period to persons who have undisclosed foreign assets which they had not disclosed for the purposes of Income Tax so far.The compliance window opened on 1st July, 2015 and was till 30th of September 2015.The statement said the Commissioner rank officer designated to receive declarations worked till midnight even as the e-filing portal was also open till midnight to receive the declarations.