Justice James Omotosho issued the order on Friday, while delivering judgment in a suit challenging the legality of the convention.
The judge predicated the decision on the grounds that the PDP failed to comply with relevant conditions and laws for the conduct of such conventions.
The judge held that evidence from the electoral umpire and some of the respondents showed that congresses were not held in some states of the federation in breach of the law.
In addition, the court held that the signing of notices and correspondence of the PDP by its National Chairman without the National Secretary, violated the law and consequently made such notices and correspondences a nullity.
