S. 271AAB : Penalty-Search initiated on or after 1st day of July 2012-Undisclosed income-Surrendering additional business income-Levy of penalty at 10 Per Cent. on undisclosed income-No further appeal filed against order-Penalty justified-Difference in valuation-Not undisclosed income-Levy of penalty is not justified. [S. 132(4), 153B(1)(b)]