  We present evidence of a direct accretion disk-jet connection in the Galactic
microquasar GRS 1915+105 based on our analysis of RXTE/PCA data with a
``spike'' in X-ray light curves. We find that the radio emission increases as
the hardness ratio increases during the low hard state. We suggest that the
``spike'' which separates the dips with hard and soft spectra marks the
beginning of the burst phase when the luminosity of the soft X-rays (5-15 keV)
increases by a large factor (~ 10). This produces a major ejection episode of
the synchrotron - emitting plasma termed as ``baby jets'' which are associated
with infrared (IR) and radio flares of about half an hour period widely
reported in the literature. Subsequent short but frequent soft dips produce
overlapping faint flares which result in an enhanced level of quasi-steady
emission. We discuss the dissipation of accretion energy in the inner part of
the disk in terms of a comptonising cloud and the escaping mass which produces
synchrotron radiation. We discuss the differences between ``baby jets'' and
relativistic radio jets and especially investigate their signatures in X-rays.
Our results support the relativistic jet model with quasi-continuous mass
ejection and strong variations in the jet speeds required for the formation of
strong internal shocks to continuously accelerate the particles.
