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In a statement here, he clarified that during the past few months the matter has been thoroughly investigated and all the officials who have been issued notices were found involved in the `embezzlement of airport tax to the tune of Rs. 6.2 million'.
The spokesman further maintained that `All officials found involved in this malpractice were issued explanation letters in August last year but they refused to reply and not appeared for personal hearing'.
`All record is available with PIA therefore any report to the contrary is not correct', he further pointed out.