The income tax department has issued about 5,100 notices for high-value suspicious deposits post demonetisation and people have admitted to undisclosed income of over Rs.5,400 crore, Parliament was informed on Wednesday.

The department has conducted more than 1,100 search and survey operations and issued about 5,100 notices for verification of suspicious transactions of high-value cash deposits, Minister of State for Finance Santosh Kumar Gangwar said in a written reply in the Rajya Sabha.

"These actions led to seizure of valuables of more than Rs.610 crore which includes cash of Rs.513 crore and admission of undisclosed income of more than Rs.5,400 crore till January 10, 2017," he said.

The department has identified 17.92 lakh individuals whose tax profiles were not in line with the cash deposits made by them during the 50-day demonetisation window that ended on December 30, 2016. As part of the initial phase, it had sought online response on source of cash deposits made by these people.

To another query, Gangwar said enforcement actions of the tax department during April 1, 2014 to December 21, 2016, have led to admission of undisclosed income of more than Rs.60,000 crore and seizure of undisclosed assets worth Rs.2,607 crore.