The present study was planned to evaluate the effect of passive transfer of immunity on immune status, growth and health of buffalo calves during the first 3 months of life. Twenty one normally born buffalo calves were randomly selected and serum IgG concentrations at 24-48 hrs of life were noted for all the calves. 5 out of 21 calves were found to have serum IgG concentration < 10g/L and thus suffered from FPT. Calves from FPT group had significantly higher severity of illness as compared to normal calves. Ig index was a significantly higher in case of FPT calves. Average daily weight gain was also significantly lower in the FPT group showing the direct effect of passive transfer of immunity on growth and health status of calves.