New Delhi, Dec 27 (ANI): Aam Aadmi Party (AAP) chief Arvind Kejriwal, who is set to take part in a tea-party on Saturday to collect funds for the party, has challenged the BJP to disclose the source of its funding. The AAP has organized a tea-party at Safdarjung Enclave to raise funds ahead of the Delhi assembly elections. The party has claimed that all its supporters and believers of clean politics, who don't want black money in politics, are coming forward to help raise funds. The Bharatiya Janata Party, however, took a jibe at Kejriwal's fund raising tea-party by calling it 'chai pe kharcha'.