A meeting of five opposition parties was held in this regard on Tuesday.
PTI Chairman Gohar Khan, Jamaat-e-Islami acting amir Liaquat Baloch, Balochistan National Party-Mengal (BNP-M) President Akhtar Mengal, Opposition Leader in the National Assembly Omar Ayub, Majlis Wahdat-e-Muslimeen (MWM) chief Allama Nasir Abbas, PTI leader Asad Qaiser and Achakzai attended the huddle.
The meeting consulted on the issues related to the formation of the opposition alliance.
It was reported that Achakzai will meet the head of his eponymous faction of Jamiat Ulema-e-Islam (JUI) Fazlur Rehman in the next three days and will formally invite him to join the alliance.
Fazl has already issued a call for opposition against the government.
After the JUI-F joins the grand opposition alliance, the PTI along with the party will announce protest demonstrations under the leadership of Achakzai, and will move forward in unison, it was reported.
JI is also likely to secure a major position in the alliance.
