Sameer was arrested after over six hours of questioning under the provision of the Prevention of Money Laundering Act at the agency's office in Ballard Tiar in Mumbai. He will be produced in court on Tuesday, official sources said.
They claimed he was not cooperating with the investigators and hence his custodial interrogation was necessary.
Earlier in the day, the ED conducted searches on at least nine premises, including properties and offices, belonging to former Maharashtra PWD minister Chhagan Bhujbal, son Pankaj, nephew and ex-MP Samir and few others.
A team of 20 officers of the Mumbai zonal unit of the agency conducted the operation.
Meanwhile, the NCP described the searches as "political vendetta".
"This is vendetta politics. This has been done to support BJP whose Member of Parliament (MP) Kirit Somaiya first makes a statement and then two days later, action (by ED) happens," NCP spokesperson Nawab Malik had said.
"This proves that the BJP plans and the agencies execute it. Our party has full faith in (the) judiciary," he had said.
The agency's action came days after the Bombay high court on January 28 sought progress reports from the Maharashtra Anti-Corruption Bureau and the ED in four weeks on their probe against Bhujbal and his family members.
The agency has filed two first information reports against the Bhujbals and others under the provisions of the PMLA, based on earlier filed Mumbai police FIRs, to probe the Delhi-based Maharashtra Sadan construction scam and the Kalina land grabbing case.
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