Preventive vigilance and optimum utilization of work force at operative levels : GS NAPE Gc letter to Secretary, DoP Preventive vigilance and optimum utilization of work force at operative levels : GS NAPE Gc letter to Secretary, DoP. How useful was this post? Click on a star to rate it! Submit Rating Average rating 0 / 5. Vote count: 0 No votes so far! Be the first to rate this post. Share WhatsAppFacebookTelegramTwitter