Jamaat-e-Islami (JI) staged a protest sit-in against price hike, unemployment, proposed amendments in blasphemy law and for the recovery of missing persons in front of Parliament House, demanding end to the policies carried out in Musharraf era, report said on Sunday. In cars and motorbikes, hundreds of JI activists were arriving at the venue to join the sit-in, holding party flags and banners inscribed with slogans against US and President Asif Ali Zardari.