The Legal Metrology Department has found short-selling of subsidised cooking gas in at least 40 agencies in the State.
The variation in weight of the cylinders ranged between 2 kg and 5 kg.
Officials said they found equipment ostensibly used to siphon off gas from cylinders.
Fine to be imposed
The errant agencies would be fined for short-selling. Some agency owners contended that the variation in weight was due to seepage of gas from cylinders and not deliberate.
State-wide raid
Controller Muhammad Iqbal and Joint Controller C. Venukumar led the Statewide operation.