  Charge conjugation, Parity and Time reversal together (CPT) is the
fundamental symmetry of the nature. If the CPT symmetry is violated, it will be
a great threat to all the well explained theories. Although no definitive
signal of CPT violation has been observed so far, there are many reasons to
undertake careful investigation of various low-energy phenomena which can at
least provide some stringent limits on CPT violation. In this regard, neutrinos
are considered to be one of the most accurate tools to test this symmetry. In
this work, we therefore investigate the effect of CPT violation through
neutrino oscillations. If we assume the fundamental CPT symmetry to be
conserved, both neutrino and antineutrino oscillations can be parametrised
using the same set of oscillation parameters. Any small deviation to the
neutrino properties during their propagation due to CPT violation, can be
studied explicitly in long-baseline experiments. We discuss the potential of
various long-baseline experiments to impart the bounds on the CPT violating
parameters: $\Delta(\delta_{CP})$, $\Delta(m^2_{31})$ and $\Delta(\sin^2
\theta_{23})$, which characterize the difference between neutrino and
antineutrino oscillation parameters.
