Ahmed was commissioned as a second lieutenant in the
27th Punjabis of the
Pakistan Army in 1970. He was serving in the army in
the then West Pakistan when the Liberation War broke out in 1971. Later, he stood for the Biplobi Sainik Sangshta (Revolutionary Sepoy's Organisation) in opposing the military rule and took shelter in the Sundarbans with his followers as part of the resistance. Ziaduddin was arrested in an army operation in the Sundarbans in 1976. Along with many other dissenting military officials and political leaders, he was sentenced to life imprisonment by a military court. In 1980, he was freed on presidential clemency. Ziauddin served as municipality chairman of Pirojpur municipality between 1989 and 1991. In 1996, he joined the Awami League and was an advisor to the Awami League's Pirojpur unit. Ziauddin also forged a non-political organization named ‘Banchao Sundarban’, as part of protecting the wildlife sanctuary of Sundarban. == Personal life ==