Prompted by the challenges faced by teachers in balancing grammar and content in English classes, coupled with the poor English proficiency of rural Odia medium school students, the study aimed to devise an intervention that could balance content and grammar, thereby enhancing the grammar competency and content comprehension of eighth-grade students. Based on quasi-experimental research with a pretest-posttest nonequivalent group design, two groups were assigned treatment conditions: the 5E Model with Planned-Incidental Grammar Teaching Approach (experimental group) and the traditional Grammar Translation Method (control group) during class instructions. Data were collected from 100 school students, with 52 in the experimental group and 48 in the control group, using pretest and posttest assessments. The mixed ANOVA test results revealed significantly higher posttest scores in the experimental group compared to the control group, highlighting the positive impact of the intervention on students' grammar proficiency. The t-test for the comprehension test suggested comparable levels of comprehension in both groups, indicating the efficiency of the new pedagogical strategy in seamlessly integrating grammar instruction into regular classroom teaching, optimizing instructional time and ensuring balance between content and grammar, making it particularly valuable for educators facing time constraints. This study underscores the need for professional development opportunities to enhance teachers' pedagogical skills and knowledge. Further research is warranted to explore the intervention's impact on various language skills and assess its applicability in diverse contexts, contributing to a broader understanding of its implications.