| Sixteen years data (1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012) comprising of records on 1029 Murrah buffalo males born in NDRI herd were analysed to study culling and mortality rates. Data were classified into four periods viz., P-1 (1997-2000), P-2 (2001-2004), P-3 (2005-2008), P-4 (2009-2012) and four seasons of birth viz., S-1 (Dec-Mar), S-2 (Apr-Jun), S-3 ( Jul-Sep), S-4 (Oct-Nov); to study the disposal pattern of different age groups of buffalo male calves. Mortality rates in different age groups of 0-1, 1-2, 2-3, 3-6, 6-18, 18-36, 36-60 and above 60 months were 17. 49, 5.99, 3.34, 5.42, 6.35, 2.59, 2.81 and 1.96 percent, respectively and corresponding culling rates for the age groups were 6. 32, 9.95, 9.86, 14.69, 25.60, 39.81, 39.89 and 34.31 percent; respectively. Mortality rate was higher in young age groups (0-1 months, 1-2 months) whereas, culling rate was higher in six months and above age group. Overall disposal rate in eight age groups were 23. 81, 15.94, 13.20, 20.10, 31.95, 42.39, 42.70 and 36.27 percent respectively. Effect of season and period of birth was statistically significant (p<0.01) for overall disposal rate in age groups of 0-1, 1-2, 2-3, 3-6. Higher overall disposal rate in male calves born in Dec-Mar and Jul-Sep could be due to higher mortality which could be attributed to exposure to inclement cold weather conditions in the former and parasitic infection in the latter season.