“…We introduce the concept of ( p, r )−ρ −(η, θ )-invexity which is the generalization of ρ − (η, θ )-invexity and ( p, r )-invexity, introduced by Zalmai [21] and Antczak [1], respectively. Definition 2.1 ([11]) Let f : R n → R be a differentiable function and p, r be arbitrary real numbers, ρ ∈ R. The function f is said to be ( p, r ) − ρ − (η, θ )-invex with respect to η, θ : R n × R n → R n at u, if any one of the following conditions holds…”