Explanation

KANUPP stands for Karachi Nuclear Power Plant

it is a large commercial nuclear power plant located at Paradise Point in Karachi Sindh 

it is Pakistan's first nuclear energy plant

it is composed of three commercial nuclear power plants

K1: 1 August 1966 (support from Canada) 

K2: 20 August 2015 (investment provided by China and IAEA)

K3: 31 May 2016 (investment provided by China and IAEA)