GUJRAT - Unidentified car riders late Friday night opened fire at Concordia College, a private educational institution here, creating panic in the area. According to eyewitnesses, many windows of the campus building were shattered. DSP City Mustafa Gillani and Station House Officer (SHO) Sajjad Zaidi reached the college with a heavy contingent. According to the SHO, some six shots were fired at the building.