Rahul Gandhi behaved like a "joker" during his visit in the state Monday and such a person is being projected as the prime ministerial candidate by the Congress, a CPI-M leader said here Tuesday.Communist Party of India-Marxist state leader Pinarayi Vijayan said: "His candidature as the Congress's PM candidate is more or less finalised and yesterday (Monday) travelling on a police jeep on his state visit he behaved like a joker." When newsmen said why can't his act be seen as a humility on his part, Vijayan shot back saying: "He is one person who is given the highest security and in the melee, a central minister (Minister of State for Labour Kodikunnil Suresh) got injured.""He behaved like a person of unsound mind and the action should be taken against him for travelling on top of a police jeep," he said.However, Kerala government chief whip P.C. George said that he was impressed by Rahul Gandhi's behaviour."He belongs to the Nehru-Gandhi clan and I never thought he could just walk into the hearts of the average common man, like what he did yesterday," George said."He has proved that his heart is there and he was able to connect with the man on the street," George said, adding that Gandhi's visit has given a great impetus to the youth in the state.