‘Gross negligence’: ACKO Insurance says wrong fuel use can void claims; social media reignites E20 petrol safety debate  MintFuel Concerns: Bengalureans Report Mileage Drop with E20 Petrol  Deccan HeraldIndia taking decisive steps to increase domestic energy production: Hardeep Puri  MintGadkari throws ‘open challenge’ on claims of lower mileage due to ethanol in petrol, blames ‘lobby’  Hindustan TimesIndia’s Ethanol Journey is Unstoppable: Shri Hardeep Singh Puri  PIB