CBI questions Chindambaram in INX Media case, further questioning likely

The senior CBI official mentioned earlier said the ex-leader might be called for a second round

In 2011, when the Central Bureau of Investigation's new headquarters was inaugurated, P Chidambaram as Union home minister was the most important person on the dais, after Manmohan Singh. 

On Wednesday, the Congress leader returned to the same building but had to disembark from his vehicle and wait at the reception to sign the register, as CBI protocol demands.

The former finance minister was then questioned for five hours by agency officials, in connection with the alleged corruption in the INX Media case. 

CBI has said there appear to be irregularities in clearance of foreign investment in INX, a venture