S. 115BBE : Tax on specified income-Survey-Undisclosed loan-Surrender of income-Statement retracted-Addition is deleted-Difference in closing stock-No evidence was found-Addition is deleted-Business income-Only source of income was business income, undisclose income embedded in undisclosed business transactions would not attract section 115BBE-Undisclosed income attributable to excess cash from other sources would attract section 115BBE. [S. 68, 69D, 133, 133A]