Income Tax (IT) department officials on Wednesday raided the house of Tamil Nadu Chief Secretary P. Rama Mohana Rao.
"The raids have commenced at Tamil Nadu Chief Secretary's residence, " a senior IT official told IANS.
The IT department recently seized a total of 177 kg of gold and cash amounting to Rs. 96 crore in withdrawn 500 and 1, 000 rupee notes and Rs. 34 crore in the new denomination from three businessmen - - J. Shekhar Reddy, Srinivasalu and Prem.
The big fish is said to be Reddy, a contractor and who has executed works for the Tamil Nadu government.