Activist Anna Hazare on Monday said he would campaign for his former colleague Arvind Kejriwal if he contested elections against union minister Kapil Sibal. "I will tell Arvind, fight elections against that man from Chandni Chowk, what is his name... Kapil Sibal," Hazare said at a press conference. Sibal, who represents Chandni Chowk constituency in parliament, holds the portfolios of communications and human resource development.