[3] He was the cousin of Ziaeddin Haj Sayyed Javadi, who was a member of the Majlis during the premiership of Mohammad Mosaddegh.
[5] Javadi, along with Mehdi Bazargan, Yadollah Sahabi and Ayatollah Mahmoud Taleghani, founded the Liberation Movement (LMI; Nehzat-e-Azad-e-Iran) in 1961.
[2] He was appointed prosecutor of Tehran when Ali Amini was prime minister in 1961, and served for eighteen months.
[6] When the LMI was banned, Javadi became a member of the opposition group against Shah Mohammad Reza Pahlavi.
[8] In 1977, Javadi was among the members and founders of the newly formed Iranian Committee for the Defense of Freedom and Human Rights.
[16] In 1985, Javadi was detained and tortured by Iranian security forces due to his criticisms about the arrest of the opposition figures.
[17] Javadi and other oppositional figures issued a statement against the death penalty for juvenile offenders in Iran in April 2009.
[10] In May 2012, Javadi and four other significant political activists, namely Hossein Shah-Hosseini, Azam Taleghani, Mohammad Bastehnegar and Nezamoddin Ghahhari, sent a letter to Ali Khamenei in which they expressed their concerns over the killings and arrests of the opposition figures in the country.