NEW DELHI (AFP) - New Delhi's long-serving Chief Minister Sheila Dikshit lost her seat Sunday to the leader of a new anti-corruption party, state election results showed.

Arvind Kejriwal, leader of the Aam Aadmi Party (Common People's Party), took an unassailable lead, winning 39,883 votes against 16,780 for Dikshit, according to the electoral commission.

"This is not my victory. This is the victory of the people of New Delhi constituency," a triumphant Mr Kejriwal told supporters. "I am absolutely confident that finally the country will win, the people will win and democracy will win," added the former civil servant who only founded the party last year.

Ms Dikshit, who has resigned from her post after 15 years as chief minister, had earlier conceded that Congress had lost control of Delhi's 70-seat assembly, saying she would "respect" the outcome.

Ms Dikshit, regarded as a powerful politician, had said ahead of last Thursday's election that Mr Kejriwal "was not even on our radar".