Objective: To observe the association of total absenteeism and the CBL absenteeism among the undergraduate medical students. Study Design: A cross sectional study. Place and Duration of Study: Army Medical College and study was conducted in the month of June 2016. Material and Methods: This cross sectional study was conducted in the month of June 2016 among the Second MBBS course at the Army Medical College. Two hundred second year M.B.B.S. students were informed and invited to participate in the study. We gathered the information from the students on total number of CBL attended in the whole academic year, reason for missing Anatomy CBL, causes for absenteeism, annual total attendance percentage of the second year class, number of pass CBL sessions in second year. Suggestions for the improvement of the Anatomy CBL sessions were also recorded. Results: Out of 173 participants, there were 101 (58.4%) male and 72 (41.6%) female students with the mean age of 20.01 ± 0.69 years. There were 84 (48.6%) medical cadets, 12 (6.9%) paying cadets, 21 (12.1%) additional selected cadets, 46 (26.6%) NUMS cadets and 10 (5.8%) NUMS foreign cadets. Mean CBL attendance was 13.09 ± 1.87 with the range of 6-15. Mean attendance of classes other than CBL was 92.40 ± 6.55. The difference of CBL attendance between various categories of cadets was insignificant (p-value=0.18). Also, there was no effect of gender on the CBL attendance (p-value=0.10). Conclusion: Frequency of students with attendance in CBL sessions below 75% is significantly different than the frequency of students with attendance above 75%. This is an alarming finding as the cut off point for appearing in annual exam set by PMDC is 75% attendance.