New Delhi: The Enforcement Directorate (ED) on Monday (September 16) summoned former finance minister P Chidambaram's personal secretary KVK Perumal to appear before it on September 18 for questioning.

ED deputy director Manish Gupta and RS Thapilial will examine him. They have sought the property details of his family members, photocopies of visas, passports and countries travelled since 2004.

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The agency has also sought answers to 40 questions from him. Notably, Perumal had evaded questions during the last two times when the agency interrogated him.

Chidambaram is facing probe in cases registered by both the CBI and the ED about alleged irregularities in the Foreign Investment Promotion Board clearance (FIPB) given to INX Media to the tune of Rs 305 crore in 2007 when he was the union finance minister.

Counsel representing Chidambaram in the Supreme Court had earlier said that six secretaries approved the FIPB clearance to INX Media to the government and that his client, being a minister, had merely signed the document.

In a tweet, Chidambaram had earlier said that no official should be arrested in the case as "no officer has done anything wrong".

The CBI arrested the 74-year-old leader on August 21. Last week, a CBI court sent Chidambaram to judicial custody in Tihar Jail till September 19.