Yes, the only "evidence" that NAB has against Farah Khan (on the basis of which the probe has been initiated) is PKR 84.7 crore transactions from her personal account in the last 3 years.
NAB's statement said that: "it has been alleged in some media reports that she has assets beyond means and that her assets have grown significantly during the last 3 years" and that "she has visited foreign countries several times" that's why the probe.
NAB had previously issued a notice to her husband, Ahsan Jameel s/o Iqbal Ch (PMLN MPA), for alleged frauds in G Magnolia Housing Scheme in 2019 as well. He had submitted a detailed reply after which the investigations were dropped.
NAB has issued another statement today justifying the probe against Farah Khan. NAB said that the bureau was authorized to initiate an inquiry of assets in excess of income against any public office holder or his family members. It added that Farah Khan's husband Ahsan Jameel Gujjar was the chairman of the Gujranwala District Council from 1997 to 1999.