Expressing displeasure over the “inaction” of the Tamil Nadu Pollution Control Board (TNPCB) against illegal packaged drinking units in the city, the National Green Tribunal, Southern Bench on Tuesday, asked TNPCB’s member-secretary to appear before it and provide explanation.

On March 5, the Bench took note of a news item which appeared in The-Hindu revealing violation of basic safety parameters in packaged drinking water units.