At least 30 students turned unconscious after eating impure meal in a private school here in Gujranwala on Wednesday, official said. According to details, the management of a private school, Little Public School, distributed meal among students of class four and five. The students started to turn unconscious immediately after eating that meal. After some moments more than 30 students fainted on the spot. After receiving information, the rescue teams rushed to the school and moved unconscious students to Civil Hospital for medical aid. Four students were reported in critical condition and doctors were trying to heal them in intensive care. The investigation of the incident started.