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Compute the income chargeable under the head "Income from interest on Securities" for Mr. Kabir for the income year 2015-2016 using the following information: Income from interest on tax-free government securities Tk. 35,000; Income from interest on less-tax government securities Tk.28,000; 8\% approved commercial securities to the extent of Tk.30,000; 7% unapproved commercial securities to the extent of Tk.30,000; Income from zero-coupon bond Tk.8,000 The Bank has charged Tk. 2,500 for collecting the above interests. In addition to this he has taken a bank loan of Tk.5,00,000@12\% interest to purchase commercial securities effective from .1 1st January 2016