Delhi Chief Minister and Aam Aadmi Party supremo Arvind Kejriwal on Sunday launched the party's door-to-door campaign for the 2019 Lok Sabha polls in the national capital.

"For four months, 3,000 teams will be visiting each household in Delhi and approach every voter. The residents are happy with the state government's performance especially in the sectors of health, education, water and electricity. We brought revolutionary changes in the city which never happened in the past 70 years," Kejriwal said amid poll campaign.