Bollywood singer Kumar Sanu Tuesday joined the Bharatiya Janata Party (BJP), promising to work for the poor of the country. Joining the BJP in the presence of party chief Amit Shah here, Sanu said he was an admirer of Prime Minister Narendra Modi and wanted to work under his leadership. Sanu also expressed a desire to work for the country's poor and the underprivileged. (Source: IANS)