  Dust-ion collisional effect in dust ion acoustic waves is investigated in the
framework of spherical and cylindrical geometry. For such study the fluid
equation are takes and collisional effect is consider in the equation of
momentum balance. Using reductive perturbation technique the evolution equation
is derived with additional damping term for non planner geometry. Using the
conservation principle an analytical time dependent solitary wave solution is
obtained for the evolution equation. It is seen that dust ion collisional
frequency has an significant effect on the width and amplitude of the solitary
wave solution.
