The Enforcement Directorate on Thursday arrested former NSE MD Chitra Ramkrishna in a money laundering case connected with alleged illegal phone tapping and snooping of stock exchange employees, after getting the nod from a Delhi court to probe the matter.

Special Judge Sunena Sharma allowed four-day custodial interrogation of Ramkrishna.

“ED has sufficient grounds to proceed with the investigating into the allegation of money laundering and to seek custodial interrogation of the accused to unearth the deeper conspiracy, the involvement of other accused persons, and their entire modules operandi. Accordingly, the accused is remanded to ED custody till July 18,” the judge said.

The former NSE MD was produced in the court from Tihar central jail on a production warrant issued by the judge against the accused on a plea filed by the ED.

After the accused was produced, the ED took permission from the court to interrogate her.

Later, the ED formally arrested Ramkrishna on the ground of non-cooperation and again produced her before the court and urged for her nine-day custodial interrogation.

The court, however, granted her four-day custody to the agency.

Ramkrishna was arrested by the CBI in a separate case and was currently in judicial custody.