156 Asian EFL Journal Research Articles. Vol. 28 Issue No. 2.3 April 2021 English as Medium of Instruction (MOI): Voices Addressing Proficiency Issues in Pakistani Tertiary Education Aishah Siddiquah Department of STEM Education Lahore College for Women University, Lahore, Pakistan Kamal ud Din Department of Educational Development, Karakoram International University, Gilgit Balitstan, Pakistan Shagufta Moghal (Corresponding Author) Department of Elementary and Teacher Education Lahore College for Women University, Lahore, Pakistan Muhammad Amir Saeed Department of English Language and Literature Dhofar University, Salalah, Oman Fasiha Altaf Ph.D. Scholar, Institute of Education and Research University of the Punjab, Lahore, Pakistan Bio-profiles: 1. Dr. Aishah Siddiquah an Assistant Professor at STEM Education Department, Lahore College for Women University, Lahore. She received her PhD in Education from University of the Punjab, Lahore in 2010. She has supervised a number of PhD and MS students and has published many articles in national and international journals of repute. 2. Kamal ud Din is the faculty member of Department of Educational Development at Karakoram International University, Gilgit Balitstan, Pakistan. He has published his work