Following the reclassification, coir industries have to get approval from the pollution control board and their operation will be monitored periodically.
Corporation officials said the civic body is having plans to place cameras in areas where there is too much littering.
TNPCB chairman Nasimuddin passed the orders on Wednesday late evening and power connection was cut in the early hours on Thursday.
Tamil Nadu Pollution Control Board orders closure, disconnects power to Sterlite in Thoothukudi; DMK chief Stalin detained for protesting at secretariat
The decision was followed by an inspection carried out by Joint Chief Environmental Engineer on May 18-19.
Sterlite said the facility has been shut since March 27 when the company took up annual scheduled maintenance.
For the past five years, Sterlite Copper’s smelter plant in Thoothukudi has been disposing of thousands of tonnes of hazardous waste without authorisation.
Sterlite challenges TNPCB order on plea seeking renewal of Consent To Operate for Thoothukudi copper smelter plant
The plea by Vedanta’s Sterlite copper smelter plant in Thoothukudi to renew the CTO beyond March 31 was rejected since the guidelines stipulated by the TNPCB were not met adequately.