A commissioner has left the country after threats, EC chief Ahmed Shareef said.
The ruling party has demanded an investigation into alleged graft by the Elections Commission chief.
The apex court order maintains the pro-government parliament majority.
The EC reversed its decision to strip 12 former ruling party lawmakers of their seats.
EC secretary-general was threatened by three masked men.
The ruling party has alleged fraud in the presidential election.
The former president also said he was talking to the military's top brass.
The Maldives president has made development the cornerstone of his re-election campaign.
Most officials in charge of polling stations are ruling party members, the opposition claims.
Mohamed Nasheed and Gasim Ibrahim both live in exile.
Some 78,964 people have been re-registered to vote outside their native island.
Fewer than 200 people registered to vote in Singapore and New Delhi.
Opposition re-registration forms were allegedly handed over to president's campaign office.
Candidate numbers were assigned on Saturday.
Laxton Group was in the Maldives to discuss e-voting systems.
The joint opposition accused the Elections Commission of conspiring with the incumbent.
The Elections Commission rejected the little-known businessman's candidacy Friday morning.
