Slamming Arvind Kejriwal for levelling baseless corruption charges against him, Union law minister Kapil Sibal on Saturday said that the Delhi chief minister should either provide proof or resign from his post.br br Kapil Sibal has given a 48-hour ultimatum to Kejriwal to show proof of corruption against him. "I will quit if a single charge of corruption is proven against me," Kapil Sibal said.br br The Union law minister also added that Kejriwal is deliberately trying to irk Congress and provoke it into withdrawing support tobr the APP government.