He said the senior officers were promoted to fill the vacancies created by the retirement of eight DIGs.
The police spokesperson assured that the recruitment process would strictly follow the provisions of the Police Act and regulations.
A country in a life-and-death struggle with insecurity could ill have afforded such waste of experience and expertise.
Mr Lakanu said that 434,604 applicants were qualified for the next stage of the recruitment process after screening.
Mr Kalu said the application portal, which opened on December 15 and was slated to close on January 26, had been extended to February 8.
Mr Ojukwu said there was an increase in targeted killings of law enforcement agents
The PSC spokesman said the board interview was a condition for consideration of senior inspectors for promotion to the next rank.
The PSC spokesman said Mr Lawal was the Assistant Inspector-General of Police (AIG) in charge of border patrol at the Force Headquarters, Abuja.
The officers promised to be of good conduct and perform their new duties diligently.
According to him, most of the officers dismissed will also be prosecuted by the legal unit of the Nigeria Police Force.
