Owing to two prominent reasons (colonisation and globalisation) English has got the status of lingua franca when it comes to fulfil the communication needs of the nations. The widespread of English has caused the creation of new languages and dialects (New Englishes). This paper is an attempt to further strengthen the idea that Pakistani English (PE) is a different variety of English on the basis of differences in pronunciation making an acoustic analysis of the four front vowels i.e. /i: /, /I/, /e/ and /ae/. The subjects were selected from among the graduate students of University of Sargodha, who were fluent in speaking English with Punjabi as their L1. 30 male and 30 female speakers were recorded, using minimal pairs. Formant values of the vowels (F1 and F2) were measured using Praat. These formant values were compared with the formant values of the vowels of Received Pronunciation (RP) and American English (AmE). On the basis of differences in formant values of vowels, the conclusions were drawn that PE is a different variety, ascertaining the previous studies on PE.