He said the 'D' in the party's 'PDA' coinage, which stands for 'pichhda' (backward classes), Dalit, and alpsankhyak (minorities) -- now stands for Damdar Dalit. Addressing a ‘Dalit Sammelan’ organised for western Uttar Pradesh in Agra, Yadav said the turnout suggested that the gathering had assumed a national character. He credited party MP Ramji Lal.