It was aired on Geo TV in a program hosted by Geo’s leading journalist. Now it’s their journalistic responsibility to prove these claims or apologise to Imran for airing defamatory content on their channel. This is how media laws work in UK unlike banana republic Pakistan
Reham Khan apologises to Zulfi Bukhari, will pay damages after losing libel case in UK
"Zulfi Bukhari has built his wealth; such as it is, through hard work and not through any form of illegal conduct," Reham says.www.dawn.com
It is not Geo's responsibility to tell others what to say or not to say.
Those people are responsible for their own claims just like Reham was responsible for her claims.