The 15th death anniversary of Pashto poet and writer Professor Pareshan Khattak was observed on Tuesday.He was born on December 10, 1931 in Karak.His book, Pashtun Kon, is a worthy contribution to Pashto literature, which has clearly mentioned with evidence the origin of Pathans and is mentioned as a reference book all over the world.He was awarded Tamgha-i-Imtiaz and Sitara-i-Imtiaz for his literary and national services.Professor Pareshan died on this day in 2009 in Peshawar.Source: Radio Pakistan