The politician who was once disgraced by a similar scandal refused to comment until the man in the video was identified.
“Everybody is speculating but I have not seen the tape so it is not fair me to answer. I am not sure if it is him, I have not seen the tape,” he told reporters at party headquarters.
Dr Chua also refused to answer on allegations made against Anwar, adding that different people have different moral value.
“Well, people have different moral values. Some people think that it is not good even more so when it comes from a person standing on a very high moral ground.
“If is proven (that the man is Anwar) then we can talk about it,” he said.
Dr Chua was forced to resign as health minister after admitting to being caught on a sex tape that surfaced at the end of 2007.
In 1989, former MIC secretary-general D.P. Vijandran was forced to resign as Dewan Rakyat Deputy Speaker after a sex video controversy.
Anwar had denied that he was the man recorded and has filed a police report.
The father of six, who is standing trial for sodomy with a former male aide, has accused Prime Minister Datuk Seri Najib Razak and Home Minister Datuk Seri Hishammuddin Hussein of being involved in the video recording, which Anwar said was an attack on him and Pakatan Rakyat (PR).
Anwar has been repeatedly accused of having affairs, culminating in two criminal charges of sodomy in the past 13 years, one of which he is still on trial for.
In his recently-released memoirs, former Prime Minister Tun Dr Mahathir Mohamad had alleged that his then-deputy had propositioned four girls for sex in the 1990s.
Anwar immediately denied the claims, calling the long-serving former PM a “blatant liar with selective amnesia.”
