The current study investigated the grit level of ESL learners and explored ways and means to develop grit in order to enhance English language proficiency at primary level. So there is a need to identify and build up grit in students as well as in teachers. Quasi experimental research design was adopted in this study. The population comprised the students of grade 5^th whereas the sample of the study consisted upon 30 students from grade 5^th by using cluster sampling technique. Data was collected by using grit scale, questionnaire and pre and post-test. The collected statistics revealed that Grit is an emotional characteristic that distinguishes through firmness of passion and based on an individual's passion for a particular long term goal or end state, coupled with a powerful motivation to achieve their respective objective. The ‘perseverance of effort’ promotes the overcoming of obstacles or challenges that lie on paths to accomplishment, and serves as a driving force in achievement realization. The findings of the current study revealed that spending long time for setting goal is the integral part of grit. Moreover, students with greater IQ sometimes lack grit therefore they quit language learning at any stage and unable to learn second language. On the other side, students with medium IQ mostly achieve their language learning goals because of the presence of grit. The study concludes with the recommendation that grit should be developed among students by proper training of the teachers at primary level.