He served as chief of protocol for a while and then was appointed chairman of the National Council of Social Welfare.
[1] He was the director general of Pakistan's Foreign Service Academy from March to September 1994.
[2] In 2001, he was appointed as minister of culture, sports, tourism and youth affairs, and minorities.
[6] He was chief guest at a memorial meeting convened by History and Archaeology Association to observe the 750th death anniversary of the great mystic poet of Sindh, Lal Shahbaz Qalandar.
[7] Tressler chaired a seminar ‘Role of Civil Society in 21st century’ organized by Department of Communication and Media studies at Fatima Jinnah Women University in collaboration with the Human Rights and Minorities Department to mark International Human Rights Day.