"We have very steep pyramid structure (in the Air Force) where there are less avenues of promotions," said Naik.
"When one does not get promotions after 24-25 years of service one wants to leave and try alternative avenues. Off hand I can tell that we have over 100 applications for VRS from pilots."
However, he added that more VRS applications would be posted once the economic crisis gets over.
Naik said that the Air Force setup independent board of officers to assess the VRS application of the pilots.
"The committee scrutinises the applications on case-to-case basis and if the reasons for VRS are justified, which mostly are on compassionate ground for children and parents, the applications are approved," Naik said.
Earlier on Wednesday, Sep 23, Naik said that India's aircraft strength was just one-third of China.