Mr Samuel was first summoned by the central probe agency to depose on Thursday at its office in Kolkata.
However, officials said, he informed the agency that he would not be able to appear in person due to some medical condition and requested them to question him at his present location in Kerala.
Hence, Mr Samuel has been asked to meet the investigating officer of the case on May 24 at its office in Kochi in Kerala, the officials said.
The Enforcement Directorate (ED) has asked him to carry along documents relating to his personal finances, those of the news channel and material related to the purported sting operation, they said.
Mr Samuel is not an accused in the ED complaint, called the Enforcement Case Information Report (ECIR), and the agency wants to quiz him to get information about the sting and circumstances in which it was carried out.
Mr Samuel has been quizzed by the CBI in this case earlier. CBI too is probing the case separately on charges of corruption.
The agency had registered a criminal compliant in this case last month under the provisions of the Prevention of Money Laundering Act (PMLA) after studying the CBI complaint. It will probe the proceeds of crime generated in this case.
The TMC leaders against whom the CBI has registered the complaint, now also booked by the ED, include Rajya Sabha lawmaker Mukul Roy, Lok Sabha lawmakers-- Saugata Roy, Aparupa Poddar, Sultan Ahmed, Prasun Banerjee and Kakoli Ghosh Dastidar. West Bengal ministers including Urban Development Minister Firhad Hakim, Transport Minister Suvendu Adhikari, Environment Minister Sovan Chatterjee, Panchayati Raj and Rural Development Minister Subrata Mukherjee have also been named in the complaint.
Former Minister Madan Mitra, legislator Iqbal Ahmed and IPS officer Saiyaad Mustafa Hussain Mirza have also been made accused in the case.
Mr Mirza, who was then posted as the Superintendent of Police of Burdwan, was too purportedly seen accepting money on camera.
The Calcutta High Court had ordered the CBI to conduct a preliminary enquiry in the matter and had later on directed it to file an FIR to probe the incident.
The sting operation was supposed to be published in a magazine where Mr Samuel, the man behind it, was then working. However, the tapes were later run on Naradanews.com.
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)