Bharatiya Janata Party (BJP) senior leader Lal Krishna Advani (2R), leader of the Opposition Sushma Swaraj (L), BJP President Nitin Gadkari (2L) and Chief of the Janata Dal Party (United) Sharad Yadav attend the National Democratic Alliance (NDA) meeting in New Delhi on Jun 15, 2012. NDA leaders met to discuss the candidature for the July 19 Presidential polls. New strains emerged in India's ruling coalition on June 14, 2012, amid wrangling over their candidate to be the next president, further weakening the already shaky alliance.