The petition seeks updates on compensation to victims, tracking of culprits.
Parties call for unity to demand justice and expose those responsible.
Rallies and general body meetings were held in Hyderabad and Mirpurkhas divisions.
Former bar chief demands that its perpetrators should be identified and exposed.
Anwar Mansoor Khan, the president of the SHCBA, believes that something can still be done.
On May 12, authorities told the SHC CJ that only bodies could enter the court.
Many journalists got stuck in the crossfire as they tried to cover May 12.
Some men ran, but others emerged about 46 bodies later, with distinction.
‘This one’s still alive, they said before one of them shot me a sixth time’.
A full bench had asked why the army was not called in.