  The paper aims to study the geometry and physics of the Raychaudhuri equation
(RE) in the background of a homogeneous and anisotropic space-time described by
Kantowski-Sachs (KS) metric. Role of anisotropy/shear in the context of
convergence and possible avoidance of singularity has been analyzed subject to
a physically motivated constraint. Moreover, using a suitable transformation
the first order RE has been converted to a second order differential equation
analogous to a Harmonic Oscillator and criterion for convergence has been shown
to be associated with the time varying frequency of the Oscillator. Finally,
the paper points out a geometric and physical notion of anisotropy along with
their corresponding behavior towards convergence.
