The bureau had summoned the former premier on May 22 in the case, but he replied that he was unable to be a part of the questioning as scheduled.
In a letter to NAB Rawalpindi, Imran said that he would be visiting Islamabad for bail in various cases, so he would appear before the authority the same day.
May 9 mayhem
Paramilitary Rangers arrested the PTI chief on May 9 in the same case, followed by widespread unrest in the country.
Many of the government and private installations were vandalised, including Corps Commander Lahore residence and the General Headquarters (GHQ) in Rawalpindi.
The acts of vandalism drew a strong rebuke from the country’s armed forces. ISPR, the military’s media affairs wing, said that it was aware of the perpetrators and would ensure due action against them.
The ISPR also said that any attempts to distort the facts related to the May 9 mayhem would be futile.
Al-Qadir case
The case pertains to Imran's misuse of authority as a public officer holder in aiding and abetting the illegal transfer of £190 million as a quid-pro-quo for personal gains, known as the Al-Qadir Trust case.
Analysts say that the case is based on strong grounds, and so it would be an uphill task for the former premier's counsels to put up a strong defence.
NAB officials maintain that the competent authority has taken cognisance of commission of offenses of corruption and corrupt practices by Khan and his affiliates as defined under sections 9(a) (iii), (iv), (vi), (xi), and other offenses defined in the relevant schedule of the NAO 1999.