Following exchange of salvos by Speaker Jamir Uddin Sircar and Deputy Speaker Akhtar Hamid Siddiqui over each other's role in parliament, Prime Minister Khaleda Zia tried to mend their ties on Sunday and asked them to keep calm.

But parliament sources said a communication cut between the pair was still in force.

It was third such prime ministerial intervention to improve the festering ties between the two after first in 2002 over exercise of power and then over the hosting of the Commonwealth Parliamentary Association (CPA) conference in this October.

A probe report on the national anthem glitch is an apparent victim of the latest high-profile squabble between the Jatiya Sangsad guardians.

The probe body led by Chief Whip Khandaker Delwar Hossain submitted the report on October 22 over non-play of the national anthem at the launch of the CPA conference, but no action was taken as yet.

Allocation of two parliament building rooms that once housed the deputy speaker's office by the speaker to Shahidul Islam, chairman of the parliamentary standing committee on the energy and mineral resources ministry, on November 18 is at the heart of Sircar-Siddiqui rift.

Sircar wrote to Siddiqui on November 24, asking his deputy to vacate the much-talked-about rooms in a letter that the deputy speaker shrugged off.

Shahidul took control of the rooms on November 19, but the deputy speaker reoccupied them a day later.