Alex Bhathal during the Batman campaign. Credit:AAP

The Greens’ Victorian branch has apologised to its candidate in the Batman federal byelection over the handling of internal bullying allegations that damaged her bid to win the federal seat.

The party has also promised a “truth, reconciliation and healing process” to resolve the internal ructions, borrowing a term from Nelson Mandela’s social justice reforms in South Africa.

Alex Bhathal’s ultimately failed campaign in the inner-northern electorate was rocked by claims of bullying against her in the weeks before the March byelection.

A 101-page dossier listing complaints against the social worker was leaked during the campaign.