Pongsak said the ongoing rally by the People's Alliance for Democracy would not affect the schedule.
"We plan to deploy 100 city police officers to ensure that the registration goes ahead smoothly," he said. "We will also request a police presence from local stations".
The PAD protest has attracted thousands of people, many of whom clashed with the police yesterday.
Pongsak said the Bangkok Metropolitan Administration would campaign to make people aware of the upcoming election.
Apirak Kosayodhin, who won the race for governor four years ago, is preparing to seek a second term.