Tamil Nadu minister Senthil Balaji underwent Coronary Angiogram on Wednesday at the Omandurar government hospital in Chennai, informed the hospital officials.
Opposition leaders have criticized the ED's highhandedness for questioning Balaji for long hours and then taking him into custody in the wee hours of Wednesday.
"The procedure adopted by Enforcement Directorate is totally illegal and unconstitutional. He was taken into custody by ED without informing him of the grounds of his arrest. We will fight this case legally," said DMK MP and advocate, NR Elango while talking to the reporters.
"Senthil Balaji was targeted and tortured. ED kept questioning him continuously for 24 hours. This is totally against human rights," the state Law Minister said adding that the probe agency has to answer to the people and in court.
Hours after minister V Senthil Balaji was taken into custody by the Enforcement Directorate (ED), Tamil Nadu minister Ponmudi on Wednesday, termed it a "revengeful act" and said that the centre is doing wrong against states where there is a non-BJP government.
DMK minister Udhayanidhi Stalin said, "Senthil Balaji is undergoing treatment. We will deal with it legally. We are not afraid of the threatening politics of the BJP-led central government".
The action came after ED sleuths concluded their day-long raids at the DMK leader's Karur residence and his office at the state secretariat in connection to an alleged money laundering case.
"BJP's misuse of central agencies to harass and intimidate the opposition continues unabated. Strongly condemn the ED raids against Thiru V Senthil Balaji, Tamil Nadu's Electricity Minister. Blinded by political vendetta, the BJP is causing irreversible damage to our democracy," said Delhi's