The Local Government Ordinance (LGO) 1976, promulgated by the government of General Ziaur Rahman, introduced a three-tier local government system. The Zila Parishad (ZP) was one of them, the other two being Thana Parishad (TP) and Union Parishad (UP). The LGO provided for a ZP that was to consist of elected, official and nominated women-members, including a chairman and vice-chairman to be elected by them from amongst themselves.
General H.M. Ershad, who seized power in March 1982, transformed thanas into upazilas (sub-districts) and sub-divisions into zilas (districts). So, the three tiers of local government stood as Union Parishad (UP), Upazila Parishad (UZP) and Zila Parishad (ZP).
In 1988, the Jatiya Party government of President Ershad enacted the Zila Parishad Act. According to this Act, a ZP comprised (a) public representatives such as MPs, UP chairmen and municipality chairmen of the concerned district, (b) nominated members and (c) certain officials including the deputy commissioner of the district without voting right. The ZP chairmen were to be appointed by the government.