  In this paper we study the physics potential of the KamLAND detector in
probing neutrino oscillation parameters through observation of supernova
neutrinos. In particular, we discuss the possibilities of probing the mixing
angle $\theta_{13}$ and determining the sign of $\Delta m^2_{32}$ from the
total charged current(CC) event rates on the proton and $^{12}{C}$ target, as
well as from the CC spectra. We discuss the chances of probing the earth matter
effect induced modulations from the observation of CC spectra in the different
CC reactions in KamLAND and find the volume required to get a statistically
significant signature of the earth matter effect in different energy bins. We
also calculate the event rates expected in the neutral current (NC) reactions
on Carbon and free proton and investigate if the charged current to neutral
current ratios, which are free of the absolute luminosity uncertainty in the
supernova neutrino fluxes, can be useful in probing the oscillation parameters.
