  We report our findings on the perturbative structure of ${\cal N}=4$
supersymmetric Yang-Mills (SYM) theory in the infrared sector by computing
inclusive scattering cross sections of on-shell particles. We use half-BPS,
energy-momentum tensor and Konishi operators to produce singlet states in the
scattering processes to probe the soft and the collinear properties of the
cross sections. By appropriately defining the infrared safe observables, we
obtain collinear splitting functions up to second order in the perturbation
theory. The splitting functions and the infrared finite cross sections
demonstrate several interesting connections with those in the perturbative QCD.
We also determine the process independent soft distribution function up to
third order in the perturbation theory and show that it is universal {\it i.e.}
independent of the operators as well as the external states. Interestingly, the
soft distribution function in ${\cal N}=4$ SYM theory matches exactly with the
leading transcendental part of the corresponding one in the QCD. This enables
us to predict the third order soft plus virtual cross section for the
production of the on-shell singlet states.
