In the last decade, a number of previous research studies in the Applied Linguistics, TESOL and TEFL focused on the issues of language alternation and their iii role in the interaction between teachers and students. But no such research was conducted to address these issues in the context of Pakistan to understand the reasons for teachers code-switching between English and Urdu in the TEFL classroom. Pakistan is a multilingual country, and educational institutions are essentially bilingual and cannot be made free from the influence of bilinguality. Moreover, English courses are...