  A modified non-linear time series analysis technique, which computes the
correlation dimension $D_2$, is used to analyze the X-ray light curves of the
black hole system GRS 1915+105 in all twelve temporal classes. For four of
these temporal classes $D_2 $ saturates to $\approx 4-5$ which indicates that
the underlying dynamical mechanism is a low dimensional chaotic system. Of the
other eight classes, three show stochastic behavior while five show deviation
from randomness. The light curves for four classes which depict chaotic
behavior have the smallest ratio of the expected Poisson noise to the
variability ($ < 0.05$) while those for the three classes which depict
stochastic behavior is the highest ($ > 0.2$). This suggests that the temporal
behavior of the black hole system is governed by a low dimensional chaotic
system, whose nature is detectable only when the Poisson fluctuations are much
smaller than the variability.
