Absenteeism is an issue plaguing school across the nation. Due to Covid 19 pandemic situation all students in India were studying online mode. A disruption in learning occurs when students missed valuable instruction due to internet issues, illness, parents' economic condition etc. The aim of the study was to investigate the extent of student absenteeism in higher primary level at Parel English medium school, explore the reasons why student absent themselves from online classes and examine the implications of student absenteeism. The study adopted the mixed methodology and used a survey research and experimental research design. Data were collected by self-administered questionnaires and interviews with 30 students at higher primary school. The study revealed that student absenteeism is due to reasons such as: lack of subject interest, poor online teaching strategies by teachers, unfavorable online learning environment, network issues and health problems of the students.