Maximum 5-year chopper age angers bidders Vol 26, PW 8 (06 Apr 23) Exploration & Production ONGC is expected to face challenges in hiring nine helicopters in the western offshore... Buy this article forRs590 $9 For a 30-article or annual subscription rates click here RelatedGood response to ONGC workover rig pre-bid (02 May 24) Maximum 5-year chopper age angers bidders (06 Apr 23) Five interested as ONGC hunts for offshore WSV (07 Oct 21) Maroon accuses ONGC of rigging MSV tender (12 Aug 21) MSV pre-bid attracts 14 companies for ONGC (01 Jul 21) New MSV and seismic vessel age limits at ONGC (06 May 21) Oil India gears up for Rajasthan drilling (31 Jul 14) Oil India tired of seeing only John and Essar rigs (03 Jul 14) Anger over ONGC's new norms to hire helicopters (04 Jun 09) Sagar Vijay anchors off coast of Goa (10 Nov 99)