New Delhi, June 4 (IANS): Chief Minister Arvind Kejriwal on Thursday announced that Delhi would be a world class city in the next four years.

"As I had said during the elections, we will make Delhi one of the best cities in the world," the chief minister said while introducing mechanical road sweepers.

"If we continue to receive the love and support of the public and the workers, then not in five years, we will make Delhi a world class city in just four years," he said.

"There is one condition though no one should lose his job because of this (mechanical road sweepers). There is already too much unemployment in the country. But till I am here, rest assured no one will lose his job," he said.

Mechanical road sweepers, introduced by the New Delhi Municipal Corporation (NDMC), were on a trial basis and if it is successful, then all PWD roads - stretching to about 1,260 km - in the national capital will be swept with these machines.

"We will see how successful it is. If it proves successful then we will use mechanical sweeping for PWD roads in Delhi in next phase," he said.

Eight mechanical road sweepers were deployed by NDMC for "wet cleaning" of roads covered by it.