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.
The president did not hand his own papers in because he was busy.
There are concerns about voter manipulation, transparency and confusion caused by the changes.
There are more than 27,000 Maldivian resort workers.
MDP representatives walked out of Tuesday's meeting of the national election advisory committee.
Some 1,449 people on the list were below the voting age, 412 were deceased, and 76 names were repeated.
The main opposition party was warned not to conduct its presidential primary as planned on May 30 with former president Mohamed Nasheed as the sole candidate.