Income Tax Department has detected undisclosed income of Rs 20,589.75 crore in searches and surveys conducted by it in 2011-12, government said today. Minister of State for Finance S S Palanimanickam in a written reply to the Rajya Sabha said, "In the searches conducted by Income Tax Department during FYs 2009-10, 2010-11 and 2011-12, undisclosed income of about Rs 8,101.35 crore, Rs 10,649.16 crore and Rs 14,017 crore, respectively were admitted by the persons searched."

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