[2][3] In 2011, Sikhs for Justice filed a lawsuit in a U.S. court against Kamal Nath and several other leaders of the Indian National Congress for their alleged role in the 1984 anti-Sikh riots.

[4][5] However, the court dismissed the case, stating that it did not sufficiently "touch and concern" the U.S.[6] In September 2013, the group filed an amended class-action complaint against Sonia Gandhi, accusing her of protecting party members involved in the 1984 anti-Sikh riots.

[3][11] In November 2018, Gurpatwant Singh Pannun announced that SFJ would establish a permanent office in Lahore to facilitate voter registration and provide information to Sikhs about the referendum.

[12] The group has occasionally expressed support for a greater Khalistan, with its headquarters in Pakistan's Punjab province, and has invited non-Sikhs to register to vote.

Punjab Chief Minister Amarinder Singh rebuked him, and both the Shiromani Akali Dal and the Bhartiya Janata Party criticized Khaira for his statement.

[15] On 31 October 2021, SFJ held the first round of its referendum in London for Sikhs of Indian ethnicity aged 18 and above, announcing plans to expand voting to other cities in the United Kingdom.

Members of Sikhs for Justice (SFJ) have used the corridor to promote Referendum 2020, urging pilgrims traveling across it to attend workshops and seminars on the Pakistani side.

[41] Additionally, a member of the Khalistan Zindabad Force, who was detained that same month for a bombing in Tarn Taran, claimed that the group had ordered him to kill dera leaders of local religious sects.

[42] SFJ activist Jaswinder Singh Multani was detained and questioned in Germany in December 2021 for his alleged role in the bombing of a court in Ludhiana.

[45] According to audio recordings of Gurpatwant Singh Pannun obtained by the Punjab Police from two SFJ members in July 2022, the group attempted to arrange shelter for the killers of singer Sidhu Moose Wala and planned to target Ambala Cantonment Junction railway station and Ambala City railway station, as well as disrupt Independence Day celebrations in Delhi and Punjab.

[48] However, Pannun later stated that the organization only engaged in a peaceful struggle and would provide legal aid to the suspects, whom he claimed were falsely accused.

Citing the evidence presented, the tribunal stated that the activities of the group were "unlawful," "disruptive," and "threatening the sovereignty, unity, and territorial integrity of India."

It concluded that SFJ was "working in collusion with anti-India entities and forces," and therefore, "[T]he Central Government had sufficient cause to take action under UAPA for declaring Sikhs for Justice as an unlawful association.

"[58] On 1 July 2020, Gurpatwant Singh Pannun was declared an "individual terrorist" under the UAPA for promoting secessionism and allegedly encouraging Punjabi Sikh youth to take up arms.