Itآ’s official: Tata Power drops Tata Petrodyne sale Vol 7, PW 23 (11 Feb 04) Exploration & Production After several months of uncertainty, Tata Power has reversed its decision to sell Tata Petrodyne, its 100% upstream subsidiary. ... Buy this article forRs590 $9For a 30-article or annual subscription rates click here Data not available in ...