Levy confirmed Publicis' annual targets of organic sales growth of more than 4 percent and improved operating margins and shares rallied over 5 percent higher after the results.
"Last year we had a real problem with China, where we had double digit negative growth for the last quarter, as a lot of advertising had been stopped particularly in luxury goods. This year first quarter, we are up – which is extremely positive," he told CNBC.
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Levy, who has served as Publicis CEO since 1987 and led the group to the merger with U.S. conglomerate Omnicom to create the world's largest advertising firm, had expected the merger to be completed by the first quarter of 2014.
The merger is currently waiting approval from Chinese regulators, after receiving the all clear from Europe and U.S. and is now expected to be finalised in the Q3 this year.
"We have filed a pre-filing, they are putting questions and we are answering and the iteration goes on like this. We don't see any question which is really embarrassing - we have the answers pretty quickly and they are reacting pretty quickly also," he said
"I don't believe that it is a big hurdle other than the time it is taking," he added.
Levy expects a "very strong" Brazil due to the upcoming World Cup, but said he was concerned about what will happen in India because of the elections taking place.