"I will explain face-to-face that it is my country that is paying the highest price for war against terror," Zardari told French media after meeting top French leaders, including President Nicolas Sarkozy.
"The war against terrorism must unite us and not divide us," he said.
The Pak president is scheduled to meet Cameron on Friday, Aug 6.
The British Prime Minister, on the other hand, has made it clear that he meant the statement that he made while on his visit to India and that he does not regret it.
"I don't regret that at all," Cameron told the BBC Radio.
"There has been and still is a problem of terror groups in Pakistan that threaten other countries. [They] also threaten our troops in Afghanistan, threaten India and threaten us in the UK, and need to be dealt with," Cameron added.