  In part I (arXiv:2006.12393) (accepted in JPP), we simulated individual
dynamics of a rising bubble and a falling droplet in an incompressible limit of
a strongly coupled dusty plasma (SCDP) using a generalized hydrodynamic
viscoelastic fluid model. In interest to understand hetero- (bubble-drop)
interactions between them, we extend this study to their combined evolution
through two arrangements: First, both are placed side-by-side in a row at the
same height. We observe that the overall dynamic governs by the competition
between the rotational motion induces due to the pairing between two
co-rotating inner vorticity lobes and net vertical motion of two
dipolar-vorticities (upward for bubble and downward for droplet) induces due to
the gravity. In second arrangement where the vertically aligned bubble (below)
and droplet (above) after collision exchange their blobs/lobes and subsequently
start to move horizontally in opposite directions away from each other. This
horizontal movement gets slower with increasing coupling strength. For the
these arrangement, we consider the varying distance between the fixed-size
bubble and droplet, and varying coupling strength which represents the nature
of our medium. A series of 2D numerical simulations have been conducted to
visualize these interactions
