leave aside the envisaged dreams of world class air traffic services," the letter said.
The Guild alleged that many of the CNS and Air Traffic Management (ATM) facilities have been commissioned without considering appropriate CNS manpower requirement.
The ill effects of such disregard towards CNS manpower requirement may not be visible instantly but will surely result in an aviation disaster, it said.
In order to sustain Air Navigation Services in desired manner and to mitigate accruing air safety hazards, additional CNS manpower is most urgently required at all levels - be it at Senior Management level, Supervisory level or at induction level, Kobiraj said in his letter.
The US' Federal Aviation Authority, in its recent audit, had also raised concerns over the various posts lying vacant in key aviation safety areas, including that in the office of the country's civil aviation regulator Directorate General of Civil Aviation.