The decision to issue show cause notices to Bhat, Nayeem Ahmad Khan and Mohammad Azam Inqillabi were issued following a meeting of the executive council of the Hurriyat, its spokesman said.
He said the three leaders have been asked to explain their position over the recent acts of "indiscipline" within 10 days. They have been suspended from the amalgam till disciplinary proceedings are in progress.
Bhat angered the separatist groups including leaders from his own faction of Hurriyat as he said that UN resolutions on Kashmir were not practically implementable in the present geo-political scenario.
Shabir Ahmad Shah, Khan and Inqillabi had questioned Bhat's statement and sought action against him. The issue had led to clashes between the rival supporters at Hurriyat headquarters earlier this month.
The amalgam has also asked Shah to refrain from taking the issue concerning the Hurriyat to the people or media and discuss these issues within the forum.