New Delhi: Four major e-commerce platforms, Amazon, Flipkart, Meesho and JioMart have delisted an allegedly unregistered agro-chemical product following notices issued by the Central Consumer Protection Authority (CCPA), which has since ordered a detailed investigation into the matter.The platforms informed the regulator that listings of “Cyclosinone Herbicide” had been removed with immediate effect and that seller accounts associated with such listings had been placed under scrutiny, the regulator said in a statement on Saturday. The CCPA, however, said the responses were only a first step and directed that the matter be taken up for investigation.