The National Accountability Bureau (NAB) Lahore chapter on Friday initiated inquiry into Sialkot Housing Scheme scandal, sources informed. The wife and son of Pakistan Muslim League-Nawaz (PML-N) stalwart Khawaja Asif, former Sialkot mayor Tauheed Akhtar, Naveed Akhtar and others are accused of alleged fraud under the name of the housing scheme. Sources said the NAB had decided to write letters to the financial institutions to check the assets of the aforesaid suspects. The approval of the inquiry was given by the NAB chairman on the complaints of the victims of the housing scheme. Back in June, the NAB had summoned Khawaja Asif’s wife and son Asad Asif for interrogation. Earlier, on March 29, the anti-corruption watchdog had summoned the former federal minister on April 2 to record his statement in a probe into a complaint against him for assets beyond known sources of income. The bureau had reportedly asked Khawaja Muhammad Asif to bring the relevant record of his assets in the country and abroad. The Executive Board of the NAB approved an inquiry against him last year.