A pro-Telangana school student set himself ablaze raising slogans in support of a separate state,leading to tension on the Osmania University campus here on Saturday. Sirpuram Yadaiah,a 10th class student,set himself afire and ran towards Arts College raising slogans in support of Telangana,sending the police and fellow agitators in a tizzy. As he began running as a ball of fire,the policemen,acted swiftly and doused the blaze by pouring water. Yadaiah,a resident of neighbouring Ranga Reddy district,had come to the city to participate in the rally. He has been rushed to the Gandhi hospital here.