  We present a brief overview of nuclear multifragmentation reaction. Basic
formalism of canonical thermodynamical model based on equilibrium statistical
mechanics is described. This model is used to calculate basic observables of
nuclear multifragmentation like mass distribution, fragment multiplicity,
isotopic distribution and isoscaling. Extension of canonical thermodynamical
model to a projectile fragmentation model is outlined. Application of the
projectile fragmentation model for calculating average number of intermediate
mass fragments and the average size of largest cluster at different
$Z_{bound}$, differential charge distribution and cross-section of neutron rich
nuclei of different projectile fragmentation reactions at different energies
are described. Application of nuclear multifragmentation reaction in basic
research as well as in other domains is outlined.
