S. 143(3) : Assessment-Unaccounted expenditure and receipts-Only profit element in unaccounted business receipts and net result of unaccounted receipts and expenditure could be brought to tax-Assessment made substantively in hands of company-Protective addition in hands of director is deleted-Certificate from Gram Panchayat secondary evidence-Primary Evidence of crops, income and expenses unavailable-Fifty Per Cent. treated as agricultural income-Balance treated as income from other sources-Cash available in hands of group-Set off to be permitted-If sufficient cash available after set off and adjustments-No addition is permissible-Depreciation-Value of addition to block-Addition of differential depreciation is deleted. [S. 5, 10(1), 32 56, 69]