The same matter was also raised by Malaysian Indian United Party president KS Nallakaruppan, who said that the police must come clean on the matter.
"This is the second incident in a short period of time. First we had the case of car park attendant B Prabakar and now this," he told Malaysiakini.
The Prabakar-case involved police personnel allegedly abusing and pouring hot water on the man while being questioned in police custody. He was picked up to assist in investigations into a robbery.
Subsequently, seven police personnel were charged with voluntarily causing hurt to Prabakar and 18-year-old C Solomon Raj to make them confess to a criminal intimidation case.
Nallakaruppan said that the police must similarly show accountability and transparency in the Kugan matter and bring the wrongdoers to justice.
"The police must reveal why Kugan had so many scars on his body. Why were there deep cuts in his wrists?
"And they must also explain how the interrogation was conducted and by whom," he said.