More than 50 residency applications from India have been turned down after officials found they had come from an unlicensed agent.
Immigration New Zealand said the New Delhi branch identified 54 applications submitted by the unlicensed Opulentus Overseas Careers.
General manager, Visa Services, Nicola Hogg, said the branch reviewed all applications after identifying there may be an unlicensed agent involved in submitting skilled migrant applications from the Chennai/Hyderabad area.
"INZ takes this matter extremely seriously.
"Our investigators in New Delhi have established that applicants paid Opulentus to represent them in their visa applications and they were asked to deny the involvement of any immigration adviser if questioned by INZ."