He had been awarded the Uttama Seva Padakkama, Sri Lanka Armed Services Long Service Medal, North and East Operations Medal, Purna Bhumi Padakkama, Operation Wadamarachchi Medal, Riviresa Campaign Services Medal, and 50th Independence Anniversary Commemoration Medal for his service during the course of his military career.
The main military decorations Kulatunga received included Rana Sura Padakkama(RSP), Uttama Seva Padakkama (USP), Sri Lanka Armed Services Long Service Medal, Riviresa Campaign Services Medal, Purna Bhumi Padakkama, North and East Operations Medal, Desha Putra Sammanaya amongst others.