A.Ltd. issued 50,00,000, 8% Debenture of Rs.100 at a discount of 6% on April 01, 2000 redeemable at premium of 4% by draw of lots as under: 20,00,000 Debentures on March, 2002 10,00,000 Debentures on March, 2004 20,00,000 Debentures on March, 2005 Compute the amount of discount to be written-off in each year till debentures are paid. Also prepare discount/loss on issue of debenture account.