"Kejriwal has got his desired (CM's) post. He has achieved this position by hijacking Anna Hazare's movement. He used Anna's anti-corruption movement to reach there," the yoga guru told reporters on the sidelines of a programme organised by Bhartiya Swabhiman Trust here.
"If he had to fight against corruption, he should have done that by remaining in the government set-up as IAS officer Ashok Khemka has done. Kejriwal had not done anything like Khemka, who has exposed corruption case against the son-in-law of Congress' leader while remaining in government service," Ramdev said.
"If he had to take support, he should have taken the support of BJP and not the from the party against which he had launched an anti-corruption crusade," Ramdev said.
Asked about the BJP's silence when Arvind wrote a letter on this matter, Ramdev said he should have talked to the BJP leaders.
Earlier, he praised BJP's prime ministerial candidate Narendra Modi and said he would organise a rally in Delhi on January 5.