NAB had directed Farah, her husband Ahsan Jameel Gujjar and 19 others to appear before the deputy director at the NAB provincial headquarters on July 20.
Azhar Siddique, Farah's legal advisor, sent a letter to the anti-graft watchdog asking it to withdraw the notices against his client.
In the letter, he said that if the notices were not withdrawn immediately, they would be challenged in the high court.
The letter also said that NAB is only authorized to investigate and inquire into offences by public office holders, and therefore it should 'decide its own jurisdiction first'.
“The NAB has authorised an inquiry against Farhat Shahzadi alias Farah Khan and others on the allegations of accumulation of illegal assets beyond known sources of income, money laundering and maintaining various accounts in the name of different businesses,” the anti-corruption watchdog said in a statement, regarding her first corruption case.
On July 2, Farah Khan and her mother were booked on charges of illegal plot allocation in Faisalabad. According to the charges, a 10-acre industrial plot originally worth Rs 600 million was allegedly transferred to her for only Rs 83 million.
Punjab Home Minister Attaullah Tarrar said on July 4 that the government plans on issuing red notices to bring Farah Khan back to Pakistan to face the corruption cases against her.