NEW DELHI: Former Union Minister P. Chidambaram on Friday appeared before the Enforcement Directorate (ED) for questioning in connection with a probe into the INX media case for giving a Foreign Investment Promotion Board (FIPB) clearance to the group in 2007. Chidambaram arrived at the Jamnagar office at 11.05 a.m. This is the third time that the former Finance Minister is being grilled by the ED in the last two months. He will be questioned under the Prevention of Money Laundering Act (PMLA), officials said.On January 21, the Central Bureau of Investigation (CBI) which is also probing the INX media case, sought prosecution sanction against the the senior Congress leader from the Centre.On Thursday, the ED questioned his son Karti Chidambaram for over six hours. Karti has been questioned earlier on several occasions. (IANS)