Arvind Kejriwal led an AAP protest against the Centre's E20 fuel blending policy, alleging it negatively impacts vehicle mileage and increases consumer costs.
Delhi Police halted the march toward the Prime Minister's residence, while BJP leaders dismissed the claims as 'fear politics' and 'fake news'.
Taxi operators in Delhi have joined the dissent, citing significant drops in fuel efficiency since the introduction of ethanol-blended petrol.