Ratan Watal likely to succeed Tyagi at regulatory board Vol 12, PW 2 (12 Jun 08) People & Policy High-flying IAS officer Ratan Watal is widely expected to replace Ajay Tyagi as secretary to the Petroleum and Natural Gas Regulatory Board... Buy this article forRs590 $9 For a 30-article or annual subscription rates click here RelatedAutograph hunters stalk PNGRB secretary (10 Apr 14) Chandra to replace Watal as PNGRB secretary (07 Feb 13) Poor teamwork scuttles PNGRB case against IGL (14 Jun 12) GAIL Gas in CNG row (17 Jun 10) Maninder Singh likely head of PCRA (26 Mar 09) Ratan Watal likely to succeed Tyagi at regulatory board (12 Jun 08) Tyagi likely to stay on at Board for another two years (03 Apr 08) Too early to 'unbundle' India's gas sector: Ajay Tyagi (08 Mar 07) Himachal CM wants Ajay Tyagi back at work in Shimla (02 Nov 06) Tyagi tipped to join new regulatory board (05 Oct 06)