While Neotia, chairman of Ambuja Neotia group, was quizzed in connection with the Saradha case, Kundu was grilled in connection with the Rose Valley ponzi scam.
Neotia went to the ED office three days in advance as he had certain pre-occupations in Delhi on March 27, the day on which he was called.
ED sources said that Neotia was asked to clarify about the statements made by him to the agency during his first stint of interrogation.
Yesterday, Shuvaprasanna who is close to the ruling Trinamool Congress dispensation in West Bengal, was grilled for more than five hours by ED for the second time.
Meanwhile, Kundu visited the ED office today to furnish certain documents to the agency.