"The new date would be announced soon as the Communist parties were busy with their May 6 programme on the same issue," a statement quoting Bajwa said here.
Bajwa said that there have been talks with BSP in which its state leadership will discuss the matter with senior leadership in Delhi and then confirm.
Manpreet Singh Badal led Peoples Party of Punjab (PPP) and former governor Surjit Singh Barnala's Shiromani Akali Dal (SAD-Longowal) have already confirmed their participation in the all-party meeting, he said.