Delhi Police has claimed to have busted an illegal factory manufacturing and packaging counterfeit lubricant oil under the labels of reputed automobile brands with the arrest of its mastermind.

"Around 4,000 litres of counterfeit oil were seized along with machines used for sealing, heating, and labelling. The accused procured raw oil and packaging material from local markets and sold the fake lubricants to workshops and retailers at discounted prices," a police officer said on Monday.