The Central Consumer Protection Authority (CCPA) has sent notices to 11 ecommerce and quick commerce companies for flouting metrology norms.CCPA took cognisance of complaints regarding violations of mandatory declaration rules under the Legal Metrology Act.Companies such as Blinkit, Zepto, Meesho, Swiggy Instamart, MyGlamm, and Snapdeal have received the notices.CCPA is investigating violations related to missing manufacturing dates, best before or expiry dates, and packaging or labelling norms.