  We consider non-Hermitian PT-symmetric deformation of $A_{N-1}$ type Calogero
model without confining potential to investigate the possible existence of
spectral singularity. By considering the Wronskian between asymptotic incoming
and outgoing scattering state wave functions, we found that there exist no
spectral singularity in this model. We further explicitly show that the
transmission coefficient vanishes and the reflection coefficient becomes unity
for all values of the energy in such a momentum dependent non-Hermitian
PT-symmetric model.
