The CBI has registered a new case against Lok Sabha MP Karti Chidambaram, son of former finance minister P Chidambaram, for allegedly receiving illegal gratification, following which searches were launched in family-owned premises, officials told PTI on Tuesday.

On Tuesday morning, after the FIR was registered, the CBI started searches at nine premises of Chidambaram in Chennai and other cities in the country, they said. The searches are being conducted at three locations in Chennai, three in Mumbai, one each in Karnataka, Punjab and Odisha, they added.

Sources have told ndtv.com that the Congress MP allegedly facilitated the project visa to a company for a power project in Punjab in lieu of illegal gratification between 2010-14.

"I have lost count, how many times has it been? Must be a record," Karti tweeted without specifying.

Karti Chidambaram is being probed in several cases, including the one relating to Foreign Investment Promotion Board (FIPB) clearance to INX Media for receiving foreign funds to the tune of Rs 305 crore when his father was the finance minister.

The CBI registered a corruption case in this case on May 15, 2017. Subsequently, the Enforcement Directorate (ED) lodged the money laundering case.

This is a breaking story. More details will be added shortly.