  We discuss the dynamics of semigroups of transcendental entire functions
using Fatou-Julia theory and provide a condition for the complete invariance of
escaping set and Julia set of transcendental semigroups. Results regarding
limit functions and postsingular set are also derived. In addition, classes of
hyperbolic and postsingularly bounded transcendental semigroups are given. We
also provide certain criterion for non existence of wandering domains of
transcendental semigroups.
