Suryadi was born from a father who was a lurah (head of community) and from a mother who was a market vendor.

He actively joined GMNI's events, but only participated in lightweight tasks, such as installing posters and banners.

The faction formally declared its anti-communist stance on 7 October 1965, six days after the 30 September Movement occurred.

At that time, he wanted to work at the Foreign Department of Indonesia, but his fanaticism to PNI made him accept the job vacancy.

After the fusion of the PNI into the Indonesian Democratic Party, Suryadi still held his position as a legislative member representing PDI.

During his tenure as member of the People's Representative Council, he became the secretary of the PDI fraction in the DPR and MPR.

He also became the chairman of the Commission X of the People's Representative Council from 1974 until 1982, and the coordinator of the Caucus 78 of DPR and MPR.

Suryadi's career in the Indonesian government returned in 1983 when he was chosen as the member of the Supreme Advisory Council.

[20] The disorganization of the congress caused Soepardjo Rustam, the Minister of Home Affairs at that time, in fury.

[21] The congress failed to choose the chairman, and the task was handed over to the Ministry of Home Affairs.

The chairman should have no traces of the PNI Asu faction, and the position was requested not to be held by a "Soekarnoist".

Based on this criterion, Suryadi's trace was cleaner that Soebagyo and therefore, he was chosen as the chairman of PDI.

[26] His rise to the chairman seat of the Indonesian Democratic Party after being chosen by the Ministry of Home Affairs was controversial.

Several reasons of unlikeness, such as the closeness to the government, the party's management, and the consensus principles which was not fully enacted by Suryadi's Central Executive Committee.

Wulandari was the daughter of a prominent PNI figure, Hadisubeno Sosrowerdojo, which was the 6th Governor of Central Java.

Suryadi always brought Wulandari wherever he go during his trip to the regions, in order to protect himself from false gossips.