  Long baseline oscillation experiments may well emerge as test beds for
neutrino interactions as are present in R-parity violating supersymmetry. We
show that flavour diagonal (FDNC) and flavour changing (FCNC) neutral currents
arising therefrom prominently impact a neutrino $\beta$-beam experiment with
the source at CERN and the detector at the proposed India-based Neutrino
Observatory. These interactions may preclude any improvement of the present
limit on $\theta_{13}$ and cloud the hierarchy determination unless the upper
bounds on ${\not R}$ couplings, particularly $\lambda^{\prime}$, become
significantly tighter. If ${\not R}$ interactions are independently established
then from the event rate a lower bound on $\theta_{13}$ may be set. We show
that there is scope to see a clear signal of non-standard FCNC and FDNC
interactions, particularly in the inverted hierarchy scenario and also
sometimes for the normal hierarchy. In favourable cases, it may be possible to
set lower and upper bounds on $\lambda^{\prime}$ couplings. FCNC and FDNC
interactions due to $\lambda$ type ${\not R}$ couplings are unimportant.
