Former Tamil Nadu Chief Secretary P. Rama Mohana Rao and his son Vivek Vishnu have been issued summons by the Income-Tax department, a day after raids concluded at their properties across the city.

“Officials will be questioning Vivek on alleged misappropriation of funds, even as it is learnt that he had conducted businesses in nexus with the PWD contractor Sekar Reddy, who was recently arrested by the CBI for money laundering,” sources said.

According to a senior official, Vishnu was asked to appear for an enquiry three months back, but he failed to do so.

Meanwhile, a CBI court today adjourned to December 27, the bail petitions filed by Sekar Reddy and four of his associates – Srinivasulu Reddy, Prem Kumar, Rathinam and Ramachandran.

Also, the petitions filed by the CBI seeking custody of all the accused, were also adjourned to the same date by Judge Vijayalakshmi.

After the IT raids raids at the premises of Sekar Reddy, Srinivasulu Reddy and Premkumar on December 8, during which large sums of cash and jewellery were seized, the CBI arrested Sekar and Srinivasulu on December 21 and remanded them to judicial custody till January 3.

The other three were arrested on Thursday and remanded till January 4.