Labour officials seized 34 electronic weighing scales and registered cases against erring shopkeepers for various violations in two-day raids at shops in South Gate, Villapuram, Avaniapuram, Subramaniapuram, Tirunagar, Kalavasal, Kochadai, Koodal Nagar, Karuppayoorani, Othakadai, Oomachikulam and Melur.

The weights were not calibrated and also sub-standard, said Assistant Commissioner N. Govindan.

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