Conclusive evidence from Pre-Covid research has exhibited a moderately positive correlation between Students’ Engagement with Academic Achievement(AA) as significant precursors of student-centred learning (Hao Lei et al., 2018). Gunuc and Kuzu (2014) defined Student Engagement (SE) in terms of psychological, emotional, cognitive and behavioural reactions to the students’ learning process. However, the dynamics aligned to these constructs remains ambiguous for want of research on Behavioural, Cognitive & Emotional engagement of students in Post Covid offline classroom of higher educational institutions (HEIs). This study measured Student Engagement basis the three sub-constructs, its impact on Academic Achievement, and its subsequent impact on Knowledge Management, given the fact that there is a perception that post covid offline classrooms have suffered on the mentioned accounts.