Rejecting the income tax department’s stand, the Supreme Court on Wednesday ruled that banks are allowed to claim deductions for broken period interest paid on government securities traded as stock­-in-trade. Broken period interest is the interest paid by a bank when purchasing government securities between coupon payment dates. The court said it is well-settled that in the banking business, securities purchased by banks, per se, constitute stock­in­trade of the bank as normal and ordinary banking business is to deal in money credit. It said the money is parked in readily marketable securities so that it is available to meet the demand of depositors. “As we have pointed out above, it is a normal mode of carrying on banking business to invest moneys in a manner that they are readily available and that is just as much a part of the mode of conducting a bank’s business as receiving deposits or lending moneys or discounting hundies or issuing demand drafts. That is how the circulating capital is employed and that is the normal course of business of a bank.