A new gamma-type distribution involving the tau -confluent hypergeometric f
unction is introduced. A generalized form of incomplete gamma function and
its complementary form are introduced in order to obtain some statistical f
unctions. Some basic functions, associated with the new density, specifical
ly, moment, mean, expected value, hazard rate function and mean residue lif
e function, are derived. Several special cases such as the generalized Weib
ull, gamma and confluent densities are mentioned. The behaviour of probabil
ity density function and hazard rate functions are depicted graphically for
certain values of the parameters.