lucknow while lucknow nagar nigam is yet to take a decision on a ban on use of polythene the cantonment board has implemented it effectively on wednesday it challaned 20 shops selling polythene bags the raid was conducted by a flying squad under the guidance of ak katiyar health superintendent during the drive they seized 10 kgs of polythene bags and challaned 20 shops and ferrywallahs selling them on tuesday also six shops were challaned for selling polythene the challans have been issued using powers under section 118 of cantonment board act 1924 said a board official as per board rules a fine of upto rs 500 can be charged from these persons it may be noted that the cantonment board had implemented a ban on the sale of polythene bags from april 12 it had advertised that those defying the ban would be penalised under law