Addressing his first press conference after the Centre announced its move to abrogate Jammu and Kashmir's special status under Article 370 of the Constitution on August 5, Malik asked the Congress to clear its stand on the Kashmir issue.
Asked about Gandhi's statement on alleged violence in Kashmir, the Governor said, "Rahul Gandhi is a man from a prestigious family of the country, but he has behaved like a political juvenile. The outcome of that (statement) is that Pakistan has quoted his statement in its letter to the UN. He should not have done that."
Last week, Gandhi had attacked the government over the Kashmir situation and said that the opposition and the press got a taste of the "draconian administration", referring to an incident where he and other political leaders were prevented from visiting Kashmir Valley.
The journalists accompanying the delegation were also not allowed to go out of the Srinagar airport after their arrival from Delhi.
He said Gandhi should have spoken on Article 370 on the day when one of his party leaders speaking in the Lok Sabha mentioned United Nation with Kashmir.
"If he was a leader he should have scolded his party colleague and then told him the party's stand on Kashmir," he said.
However, it's (Congress) stand on Kashmir was not clear, he added.
Malik said when the elections would come, his (Rahul Gandhi) opponents would tell the people that they were the people who supported Article 370 and the people would thrash them.
Pakistan raised the abrogation of Article 370 at the UN quoting Gandhi's comments to justify its stand.