The firm has made a written representation to CPCB to rescind the order, but company officials said that it would not have any material impact as the plant is already under planned shutdown between February 21 and April 15, 2017 for relocation of ammonia pipeline and scheduled maintenance.
"This is to inform you that on March 11, 2017 the company has received a notice from the CPCB directing the Company under Section 5 of the Environment Protection Act, 1986 to shut down plant operations at Haldia, West Bengal, for alleged non-compliance with prescribed norms for liquid affluent discharge," the company said in a regulatory filing.
"The company in its representation (to CPCB) has submitted reports of parallel samples drawn on the same day as CPCB confirming the compliance with the prescribed norms by the State Pollution Control Board approved lab," the company said.
The plant produces fertiliser like Diammonium phosphate (DAP) and Single superphosphate (SSP).