Abstract:
In the higher education context in Sri Lanka, government universities have a greater responsibility to produce more productive and effective undergraduates to society. The higher education system's quality disruption is caused by the student's engagement with student union activities. In that case, the government, university administration, and society suffer from poor knowledgeable, and unskilled undergraduates arriving from government universities. In this research study, the researcher investigates four major factors, the family background of the undergraduates, the university environment, difficulties faced by the undergraduates, and undergraduate sports involvement in university, which significantly cause student union engagement in national universities. It was found that family background, university environment, difficulties faced by the undergraduates, and sports participation of the undergraduate influence students' involvement in university politics. Ultimately, union involvement significantly impacts the undergraduate's academic performance, which was confirmed by results generated through the omnibus model of the test. This study's findings provide insights for university administration, parents, and primary and secondary school teachers to develop more productive and effective undergraduate through national universities in Sri Lanka.