To assess the awareness, perception, and practices of health science students towards blood donation during the COVID-19 pandemic. This cross-sectional study was done among the undergraduate medical, dental, physiotherapy, and audiology, speech and learning pathology students in May 2021. A self-administered questionnaire designed using Google Doc was used for data collection. Out of the 461 participants, only 171(37.1%) knew that Coronavirus was not transmitted through blood transfusion. Only 125(27.1%) participants knew that a minimum of 14 days is required before a donor who tested positive for COVID-19 can donate blood. As many as 339(73.5%) participants expressed their willingness to donate blood during the current pandemic. Having donated blood in the past ( p = 0.001), having vaccinated with COVID-19 vaccines ( p = 0.029), having taken both the vaccine doses ( p = 0.0499), and absence of anaemia ( p = 0.0159) were associated with willingness to donate blood during the pandemic. Only 83(18%) participants had donated blood after the onset of the pandemic. Out of the rest 378, 106(28%) participants did not donate blood due to the fear of getting infected with Coronavirus. Absence of chronic co-morbidities ( p = 0.0288) was associated with the history of having donated blood after the onset of COVID-19 pandemic among the participants. Awareness of participants regarding certain key issues related to blood donation and COVID-19 were found lacking. Counselling services to alleviate fears associated with blood donation and awareness sessions to remove misconceptions are required among students to improve blood donation practices.