A total of 27 million people have so far been registered by the authority. However a sizeable number of cards were printed with mis-spelt names, errors in birth dates and un-captured signatures, among others.
Some were picked by the owners and are being used with the errors, while millions of others remain in the custody of the authority.
NIRA public relations officer Michael Muganga says that the aim is to ensure that the data on the national IDs is corrected and that it matches all other public records of the ID holders.
Muganga says that the corrections will be done, alongside the registration of persons who could have missed the initial mass registration exercise undertaken in 2014.
He says that the authority wants to extend the services to all communities so that persons who are not registered are not disenfranchised by the system ahead of the 2021 general election.
The exercise is estimated to cost Shs 7 billion.Â
