Delhi police spokesperson Suman Nalwa said that Irani, a resident of Mumbai, has joined the investigation at the economic offence wing office.
Actor Jacqueline Fernandez on Monday arrived at the Patiala House court in the national capital in connection with the Rs 200 crores money laundering case involving alleged conman Sukesh Chandrashekhar.
The actor was accompanied by Pinki Irani who allegedly introduced her to Chandrashekhar, a senior police officer said.
The police said ever since Chandrasherkar has been jailed, the prison had become a hub of illegal activities which he carried out with the help of jail officials.
The ED in April provisionally attached Rs 7.27 crore funds of the actor under the PMLA apart from Rs 15 lakh cash as the agency called these funds as "proceeds of crime".
It is alleged that Chandrashekhar to purchase gifts for Fernandez used illegal money, extorted by cheating high-profile people including former Fortis Healthcare promoter Shivinder Mohan Singh's wife Aditi Singh.
Pinky Irani alias Angel, 53, was arrested in this case by the agency in December last year. She was recently granted bail by a Delhi court.
The Delhi police has prepared a list of 100 odd questions that actor Jacqueline Fernandez has been asked to answer in the alleged Rs 200 crore scam.
Bollywood actor Nora Fatehi was on Thursday questioned for nearly five hours by Delhi Police's Economic Offences Wing for investigation in connection with an extortion case linked to alleged conman Sukesh Chandrashekhar, officials said.
The 36-year-old actor has been questioned two-three times by the agency in the said case earlier.
The chargesheet was filed by the agency early this month before a special Prevention of Money Laundering Act court in New Delhi and the Enforcement Directorate named Chandrashekhar, his wife Leena Maria Paul and six others in it.