Punjabi singer Daler Mehndi joined the Bharatiya Janata Party (BJP) here in Delhi in presence of Delhi BJP chief Manoj Tiwari and Union Minister Vijay Goel. Bharatiya Janata Party (BJP) candidate from north west Delhi constituency Hans Raj Hans Union Minister and Chandi Chowk candidate Harsh Vardhan were also present on the occasion. Daler Mehndi is all set campaign for Hans Raj Hans and other candidates for the Lok Sabha elections and urged voters to vote for the right candidate on May 12.