Delhi Chief Minister Arvind Kejriwal and Deputy Chief Minister Manish Sisodia will relaunch the anti-corruption helpline at Talkatora Stadium on Sunday. Suffering from a credibility crisis after being racked by infighting, which led to the premature exit of Prashant Bhushan and Yogendra Yadav, the party MlAs have been directed to whip up support by bringing in more people to the venue as a show of strength for AAP. It is reliably learnt that the massive advertising campaign may cost about Rs7 crore to the Government to operationalise the helpline that would work 24X7. The Government also intends to launch a massive publicity campaign using outdoor media, FM radio and SMSs. Sources said that the Chief Minister wants the awareness campaign to reach people from all walks of life.