ONGC unions challenge Chmn. Vol 28, PW 14 (31 Jul 25) News in Brief ONGC unions are relentlessly pursuing their demands, directly challenging chairman... Buy this article forRs590 $9For a 30-article or annual subscription rates click here RelatedONGC unions challenge Chmn. (31 Jul 25) IndianOil unions plan strike beginning May 2 (10 Apr 25) Battle lines drawn as OOA takes aim at ASTO (08 Aug 24) Arun Singh in talks with unions (25 Jul 24) Union wins as ONGC sends back offshore crew (13 Jun 24) ONGC agrees union meeting (29 Jun 23) Unions respond with June 16 protest call (15 Jun 23) Overtime win by angry ONGC offshore staff (28 Jan 21) Sanjeev Kakran to be ONGC Assam asset manager (25 Jul 19) ONGC unions withdraw protests over helicopter crash (27 Aug 03)