The examination paper prepared for WAPDA SDO posts has been canceled after leaking before examination date. However, controller of examination said paper has been canceled for some unknown reasons. At least 7, 000 candidates reached Lahore to attempt the paper. Other reports said at least 7,000 employees of WAPDA of sub engineer level would attempt the examination held for OSD post. The question paper has been leaked before the set date to promote some specific employees for the interest of high ups of WAPDA.