The research aims at exploring whether the implementation of Task-Based Language Teaching can improve students’ grammatical skills and will furthermore investigate its feasibility as a teaching approach. A first year class of English Department at Bangladesh Army University of Science and Technology (BAUST) was used and an action research was carried out. Hence, the study targets to use Task-Based Language Teaching (TBLT) in the communicative grammar learning environment using various meaningful reading tasks. The research problem in this research is the poor scores of students’ grammatical mastery observed in the pre-test. The research paper is based on the use of simple present tense. The focus of this study is the use of TBLT which is believed to guide students to experience communicative grammar learning with various meaningful and pragmatic tasks in the grammar class. The research findings revealed improvement of grammar skill for the students that have at least an initial level of grammatical competence, but no difference was detected for the students of no grammar competence, indicating the need for further investigation. Therefore, this research expects to improve not only students’ grammatical mastery but also the need for better classroom condition and overall skill development. Keywords: TBLT, grammar, meaningful, improvement, classroom