  . We consider three dimensional model of the Gaussian polymer chain in the
presence of defects to understand the formation of a polymer aggregate where
the aggregate is induced by the defects. The defects are acting as an
attractive centres of the monomers and it induces aggregation of the monomers
of the chain around the defects. It has been shown using the analytical
calculations that the formation of a polymer aggregates are favoured when the
defects have extensions in all the possible three dimensions. We have also
calculated relevant other thermo-dynamical parameters (i. e. the average number
of the monomers and the average size of the chain about the defect line) of the
polymer aggregates to justify our findings.
