According to them, the circumstances leading to the election of Mr Nortey, a former constituency chairman, were flawed.
Mr Nortey polled 393 votes in the August 2 primary to emerge winner over Philip Addison and James Nii Adjei Tawiah, who had 22 and 19 votes respectively.
The defeated two candidates, however, scratched themselves from the race, accusing the national executives of rushing the primary as, according to them, delegates had agreed to vote a week later on August 8.
Speaking in Accra, Klottey Korle Secretary of the NPP Camilla Tagoe said: “We see [the August 2 elections] as an attempt to impose Nii Noi Nortey on us as our parliamentary candidate [and] that we reject the election and its outcome.
“We call on the party’s authorities to refrain from recognizing Nii Noi Nortey as our parliamentary candidate.”