During the split within the Anti-Fascist People’s Freedom League (AFPFL), Prime Minister U Nu, based on his promise that Mon State would be granted if there was sufficient public demand, had planned for the submission of the 1958 Constitutional (Amendment) Bill regarding the establishment of Mon State at the upcoming session of the People’s Assembly on 13 August 1958.
Nai Ba Nyunt, the representative from Southern Thaton, was designated to propose the bill.
However, it is known that the bill was never submitted to Parliament.
Under the “Clean AFPFL” government led by U Nu, the Mon people’s long-standing aspiration for the establishment of a Mon State could not be realized.
As political tensions escalated during the Clean AFPFL government’s tenure, Prime Minister U Nu ultimately handed over power to General Ne Win’s caretaker government.
In the 1960 general elections organized under General Ne Win’s caretaker administration, the Clean AFPFL led by U Nu won a landslide victory, allowing U Nu to return to power.
After the election, the Clean AFPFL was renamed as the Union Party. Under this new Union Party government, the Mon State issue re-emerged.
(Source: Myanmar Politics History, Vol. III: 1958–62, Yangon University Press, 1991, pp. 258–332)
