S. 115BB : Winning from lotteries-Irrespective of the head of the income, the winnings from lotteries shall be taxed at a special rate-The business loss incurred by the assesse after exclusion of prize money earned from the unsold lottery tickets is eligible for set off against such winnings from lotteries. [S. 2(24)(ix), 28(i), 56(2)(ib), 58(4), 71]