ew Delhi, Jun 12 (PTI) Jaswant Singh today met Samajwadi Party supremo Mulayam Singh Yadav amid speculation that the BJP leader could be lobbying for the Vice President's post. When Yadav was meeting yoga guru Ramdev at his residence on the issue of black money here this morning, Jaswant Singh drove in and was inside the SP leader's house for ten minutes. It is understood that the three discussed the issue of Indian black money stashed away abroad. Jaswant Singh had raised the issue on behalf of the BJP in the Lok Sabha. The meeting between the SP chief and Jaswant Singh triggered speculation that the BJP leader may be making an effort to lobby for himself as a candidate in the Vice Presidential poll. BJP and NDA have not yet taken a stand on issue of Presidential and Vice Presidential election candidates. After the meeting, Yadav came out to see off Jaswant Singh and the two were seen talking one-on-one for some time. Sources said Jaswant Singh has been lobbying for his candidature for the post of Vice President for sometime. He has reportedly discussed the issue within and outside the party. Punjab Chief Minister Parkash Singh Badal, whose SAD is part of the NDA, has also been talked about as a possible Vice Presidential candidate.