Speaking in front of supporters, including well-known social critic Dr Prawase Wasi and Bangkok senator Sophon Suphapong, Mr Wuthipong said he decided to run for the city's top administration post because he was tired of politicians failing to take into account advice given by outsiders.

Mr Wuthipong was confident his experience as executive of the Thai Rating and Information Services Co and Bangkok Bank, and his past handling of national-level policies, would enable him to effectively take the helm of the Bangkok Metropolitan Administration (BMA). He believed he would be able to apply that work experience to Bangkok and vowed to make public participation the key to his success.

Saying he would not spend much money on his campaign, Mr Wuthipong said he wanted to prove that political success does not require riches and that principles can prevail over wealth.

He also vowed to keep the city administration out of money-spinning businesses such as casinos and commercial centres which require the BMA to close down public parks.

As a staunch opponent of privatisation, Mr Wuthipong said he would preserve and maintain national property.

Narong Chokwattana, a supporter of Mr Wuthipong, said he was glad to see many followers of Maj-Gen Chamlong Srimuang join the race because they are all good people.