  The error function occurs widely in multiple areas of mathematics,
mathematical physics and natural sciences. There has been no work in this area
for the past four decades. In this article, we estimate the coefficient bounds
with q-difference operator for certain classes of the spirallike starlike and
convex error function associated with convolution product using subordination
as well as quasi-subordination. Though this concept is an untrodden path in the
field of complex function theory, it will prove to be an encouraging future
study for researchers on error function.
