The Punjab Engineering College Old Student Association ( PECOSA ) is the Alumni Association of the premiere institution of the country, Punjab Engineering College (Deemed to be University) Chandigarh, with its history dating back to Mughalpura Technical institute Lahore established in 1921. Earlier  since the year  1960, the Association was known as Punjab  Engineering  College Old Boys Association. Later on the number of girl students increased considerably  and  as such the association was  registered as Punjab Engineering College Old Students Association ( PECOSA) in December 1998 with the Administration of UT Chandigarh under Registration of Firms & Societies Act (XXI of1860) when Er Avtar Singh was President of the association. Since then the Association broad based its activities from holding Annual Alumni Meet to participate in various activities of the institute.