Delhi Pollution Control Committee (DPCC) had written to the police chief and Customs Commissioner, along with the relevant directions, on September 30.
The police were asked to take action in case of violations.
The development comes days after Department of Industrial Policy and Promotion (DIPP) said possession and sale of fireworks of foreign origin, which is already a restricted item as far as import is concerned, were illegal in India and punishable under the law.
Manufacture, possession, usage and sale of any explosive containing sulphur or sulphurate in admixture with any chlorate is already banned in the country.
"Till date, no licence for import of fireworks has been granted under the Explosives Rules, 2008 by Petroleum and Explosives Safety Organisation, a subordinate office of DIPP," the DIPP had said.
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