S. 35AC: Expenditure on eligible projects or schemes-Donations-Had valid approval at the time of payment-Information from Investigation wing-No evidence that donation was bogus or returned cash-Subsequent withdrawal of approval or cancellation of registration under section 12AA(3) could not justify disallowance of deduction under section 35AC of the Act. [S.12AA(3), 35AC(6), 131, 132, 143(3),147, 148]