Ahmedabad: Sarkhej police in Ahmedabad seized 560 litres of suspected inflammable liquid, believed to be biodiesel, from a bus on June 16. The seizure took place around 11 pm at the Iskcon-end of the Sanand Circle flyover bridge followed by arrested of three persons. Police officials said the seized substance was being transported without any safety measures or prior govt approval.The liquid was found stored in 16 plastic containers, each with capacity of 35-litre, kept inside a bus. The market value of the seized liquid was estimated to be Rs 36,400, while the bus was valued at Rs 10 lakh. Authorities suspect the substance was purchased illegally from a closed petrol pump near Vavdi in Rajkot. Samples were collected from each container.The samples were marked, sealed, signed, and packed as per protocol in the presence of assistant police commissioner S M Patel of A division, Ahmedabad City.Out of the 48 canisters, 16 were retained for forensic testing, 16 were sent to the Food and Safety office at Lal Darwaja for inspection, and 16 were handed over to the bus owner, Ravi Balasara. The police arrested three persons in connection with the case. They were identified as the bus owner, a buyer, and a supplier. Legal proceedings under BNS sections and relevant sections of the Essential Commodities Act have been initiated. Sarkhej police have started further investigation to trace other individuals involved.