Islamabad: Pakistan's National Accountability Bureau (NAB) has summoned former Prime Minister Nawaz Sharif to appear before it on March 20 in the case against the editor-in-chief of the Jang Geo Media Group, Mir Shakil-ur-Rehman.

While summoning the former leader on Sunday, the NAB said that Sharif, who at present is in London for treatment after having been granted bail on medical grounds, had illegally leased 54-kanal land to Rehman in 1986, Dawn news reported on Monday.

Rehman was arrested by the NAB on March 12 in the 34-year-old case relating to the 54-kanal land allegedly acquired illegally during Sharif's tenure as Punjab Chief Minister at te time.

He was handed over to the NAB on 12-day physical remand by an accountability court following his arrest.