"30 Jan, 1933 Hitler becomes German Chancellor, 27 Feb, 1933 he burns the Reichstag, language of fascism is a prelude to its actions, Nitishji," the Information and Broadcasting Minister said in a post on social networking site Twitter.
"The irony of history is fascists and totalitarianism invariably usurp power through democracy only to subvert it totally. A great evil stalks our land," he said.
Tewari's comments on Twitter come after Nitish Kumar had in a speech in Rajgir said that Modi is like Hitler and added that he will never become prime minister.
"He (Modi) is behaving like Hitler by propagating fascism," Kumar had said, adding the people of the country will never make him the PM.