Justice Lim Chong Fong ruled that the remarks made by former Hindraf national adviser N Ganesan were defamatory.
Ganesan was ordered to pay RM50,000 in damages to each of them and RM25,000 in costs.
At a press conference in December 2013, Ganesan told reporters he believed Guan Eng and Ramasamy had sent thugs to interrupt a meeting by a NGO.
The NGO was then in the midst of drafting a memorandum to Guan Eng and Ramasamy over a faulty state-owned crematorium.
Ganesan said he had come to that conclusion after remarks made by the thugs. He later lodged a police report, repeating the same claim.
Simon Murali, who represented Guan Eng and Ramasamy, said Justice Lim had said Ganesan could have waited for the police to conclude their investigations into the case before accusing Guan Eng and Ramasamy outright.
“The judge found Ganesan’s remarks to be malicious and intended to defame Guan Eng and Ramasamy,” Simon said when contacted.
According to Simon, Justice Lim said the chief minister and his deputy could be criticised on matters related to their jobs, but slander was not acceptable under the law.
Simon and Kok Yuen Lim represented Guan Eng and Ramasamy, while S Thilagavathy and Yokinee A T Selvam appeared for Ganesan.
Thilagavathy said she had yet to receive any instruction from her client on whether to appeal.
“It was an elaborate judgement. The judge made an important observation that the press conference was made in public interest. That is all I have to say for now,” she said when contacted.
Previously, Guan Eng and Ramasamy sued the New Straits Times Press (NSTP) and its then journalist Predeep Nambiar for publishing a story on the press conference.
Last September, they won the suit after the appellate court overturned a High Court decision favouring NSTP.
NSTP paid Guan Eng and Ramasamy RM450,000 in damages and costs.