Accusing Delhi Chief Minister Arvind Kejriwal of "betraying" people by diluting the Janlokpal Bill, Swaraj Abhiyan leader Prashant Bhushan today took to air waves to challenge his former colleague to an "open debate". Bhushan and Yogendra Yadav, has accused Kejriwal of passing a diluted bill and termed it as a Mahajokepal over the clauses like appointment, removal and ambit of investigation of the ombdusman.