(b)"undisclosed income" includes any money, bullion, jewellery or other valuable article or thing or any income based on any entry in the books of account or other documents or transactions, where such money, bullion, jewellery, valuable article, thing, entry in the books of account or other document or transaction represents wholly or partly income or property which has not been or would not have been disclosed for the purposes of this Act [, or any expense, deduction or allowance claimed under this Act which is found to be false.] [Inserted by Act 20 of 2002, Section 64 (w.r.e.f. 1.4.1995).]