PAS today has asked its thousands of members to mobilise to attend the Bersih 3.0 sit-in on April 28 at Dataran Merdeka.br br PAS deputy president Mohamad Sabu has also called on the authorities to form a royal commission of inquiry (RCI) to look into irregularities in the electoral roll and voter registration, which will eventually destroy the country's sovereignty, economy and relations if left unchecked.