The People's Nationa Congress member polled 22,074 votes after the 24th exclusion to reach 50.1 percent of the total number of ballot papers from the district, to win back the seat he had held for three terms.
Candidate John Kaeo collected 7,600 votes to finish second.
Pundari thanked electors, election officials and security personnel for working together towards his peaceful victory.
More than 28 candidates contested the Kompiam-Ambum Open seat.
Counting for other seats, including the regional seat, are continuing.