Unfazed by the state Bharatiya Janata Party’s rejection of the recent unilateral ceasefire proposal of chief minister Mehbooba Mufti in view of Ramzan and the Amarnath Yatra, the ruling People’s Democratic Party (PDP) in Jammu and Kashmir on Friday went a step ahead and called upon three top separatist leaders to show willingness for joining the all party delegation proposed to be sent to Delhi for a dialogue.