  It is well known that the light-ray trajectories follow a curved path in a
gravitational field. This has been confirmed observationally where light rays
coming from distant astronomical objects are seen to get bent in Sun's
gravitational field. We explore here the bending of electric field lines due to
gravity. We determine, from a theoretical perspective, not only the exact
shapes of the bent trajectories of light rays, emitted isotropically by a
source supported in a gravitational field, but also demonstrate that the
electric field lines of a charge, supported in a gravitational field, follow
exactly the trajectories of light rays emitted isotropically from a source at
the charge location. From a detailed examination of the electrostatic field of
a charge accelerated uniformly in the instantaneous rest frame, exploiting the
strong principle of equivalence, we determine the bending of the electric field
lines of a charge in a gravitational field. The fraction of electric field
lines crossing a surface, stationary above or below the charge in the
gravitational field, are shown to be exactly similar to the fraction of
light-ray trajectories intersecting that surface, emanating from a source lying
at the charge location. On the other hand, for a freely falling charge in the
gravitational field there is no such bending of electric field lines. The field
lines continue to extend in radial straight lines from the instantaneous
'present' position of the charge, as do the trajectories of light rays
spreading away from the instantaneous position of a freely falling source in
the gravitational field. The electric field configuration of a freely falling
charge in the gravitational field is shown to be exactly the same as that of a
charge moving uniformly in an inertial frame with velocity equal to the
instantaneous ``present'' velocity of the freely falling charge.
