Pugalendi, Ramesh, Karthik alias Papplu, Srinivas Reddy, Srinivasa Rao and Rajendran of the Ranipet SIDCO Finished Leather Effluent Treatment Company were arrested yesterday and produced before a court which remanded them to judicial custody till March 19, a CB-CID police release said today.
The criminal act and negligence of the company were being probed and overall investigation continued to be on.
Ten workers were killed when toxic sludge from a storage tank of the plant entered the nearby tannery in the Small Industries Development Corporation (SIDCO) Industrial Estate at Ranipet in Vellore District.
CB-CID, which took over investigations into the case from local police, had on February 7 arrested the company's Managing Director Amirthakatesan, Directors Jayachandran and Subramaniyan.