Rizvi, the long serving legal advisor of the board, made it clear he had initiated defamation and criminal proceedings against Akhtar and also lodged a complaint with the Federal Investigation Agency under its cyber crime laws.
The govt is also criticised for its choice of Khawar Qureshi, who represented Pakistan's case before the ICJ.
Former prime minister Nawaz Sharif, 68, and his daughter Maryam, 44, are serving jail terms of 10-years and seven years respectively in Adiala jail in Rawalpindi, after an accountability court convicted them on July 6 over the family's ownership of four luxury flats in London.
The request was made in view of the upcoming elections for ICJ judges, scheduled to be held in November,
Abbasi will run the government until Sharif's brother Shehbaz is elected as member of parliament