AAP leader and Delhi minister Gopal Rai on Saturday said the party will observe 'Samvidhan Bachao, Tanashahi Hatao Divas' across the country on the birth anniversary of B R Ambedkar on April 14. The party workers will read the preamble of the Constitution and an oath to save the founding document of the country, Rai said. The minister, at a press conference at the party office here, said the BJP-led central government is attacking our democracy and constitution. To counter that, we need to be united, Rai said. "On Sunday, we will be holding a one-day programme -- Samvidhan Bachao, Tanashahi Hatao Divas -- where the AAP workers will gather at party offices in their states and take an oath to save our democracy and constitution," he said. The event will be held at the party offices in the state capitals across the country, the AAP leader said. The programme is being held on the advice of Kejriwal. In another message from the jail, Kejriwal had asked AAP MLAs and volunteers to work