  We have verified that the variational mean field theory approach suggested by
Narimanov and Varma (preprint cond-mat/0002191) being applied to the realistic
two-band model provides a good agreement with experimental data for the Curie
temperature in doped manganites A$_{1-x}$B$_x$MnO$_3$ ($x\simeq{0.3}$). We have
also considered the problem of an interplay between the ferromagnetic and
antiferromagnetic interactions by using the same approach.
