PESHAWAR     -   Several schoolteachers sustained injuries when police fired tear gas shells to disperse angry protesters here in Peshawar on Thursday. Police sources said that two policemen and some teachers were injured due to the tear gas shelling by the law enforcers near Assembly Chowk. The protesters also hit back at police by throwing stones. Despite the intense shelling and baton-charge, the police failed to disperse the protesters as the teachers stood their ground against the onslaught. The injured were rushed to a local hospital. Hundreds of primary schools teachers of Khyber Pakthunkhwa on Thursday staged a massive protest demonstration against PTI government for its delaying tactics regarding their promotion to next grade. Minister for Information and Broadcasting Marriyum Aurangzeb condemned the brutal torture on teachers in Khyber Pakhtunkhwa. In a statement on Thursday, she said torturing teachers for demanding their rights is a shameful act. The minister said these teachers are mourning on Imran Khan’s so called economic revolution in KPK Thousands of primary schools teachers of KP assembled in front of the provincial assembly’s building on Khyber Road and demanded promotion to BPS-14, 15, 16 and 17 grades and increase of allowances. Holding placards and banners inscribed with different slogans in favour of their demands, the protestors said that PTI Government that came into power in the name of change in 2013 had failed to address their problems. The speakers said delay in promotion cases were creating disparity among the teachers community of KP and demanded PTI Chairman Imran Khan, Chief Minister KP Mahmood Khan and Education Minister, Atif Khan to address their problems as quickly as possible. They said that teachers would boycott schools if their demands were not addressed