Following the footprints of national parties in India, the Aam Aadmi Party (AAP), in its nation-building initiative, registered the membership of 16 lakh people in a few days after Delhi Assembly polls.

According to  Gopal Rai, senior AAP leader, the party launched a campaign on February 11 under which it set up a phone number — 9871010101. By giving a missed call on this number people can join AAP's campaign.

Rai said 16 lakh people, including 1,72,269 in Delhi and 1,81,212 in UP, have joined the AAP using the phone number. The party will launch a mega campaign in 20 States from Sunday.

"The Aam Aadmi Party will pursue the 'politics of work' across the country. For this, from February 23, the party will start a campaign to join nation-building campaign in 20 states. As part of this campaign, Posters will be put up in 20 states and the missed call number 9871010101 will be displayed on the poster," Rai told reporters.

"Posters are being prepared in different languages for different states, so that people can be easily reached through local languages," he said.

Rai said in addition, volunteers' meet will also be organised in all states.

"All our office bearers will hold press conferences in their respective states to spread the model of positive nationalism and development which has come up in Delhi, as the politics of work got a place in Delhi," he said.

He also said coordinators have been appointed for different states for this campaign.State coordinators include Lok Sabha MP Bhagwant Mann from Punjab and AAP member Elvis Gomes from Goa.

The AAP registered a landslide victory in the high-stakes Delhi Assembly polls, leaving the main rival BJP way behind and decimating the Congress in a bitterly-fought contest. Since then the party has again started building a national ambition.

The AAP is, at present, recognised by the Election Commission as a state party.