Malda police seized 450 grams of brown sugar from a youth on Wednesday night in the district’s Kaliachak police station.

Sources said the consignment is worth around Rs 25 lakh in the grey market.

Esraful Momin, 20, was arrested from Baliadanga under Kaliachak police station.

The banned substance was found on him.

“The youth was produced in court and he would be grilled further to know the source of the narcotic substance (obtained from him) in such a high volume,” said Alok Rajoria, the Malda superintendent of police.

“Although brown sugar from different areas of Baishnabnagar, Kaliachak and Englishbazar police station areas is regularly seized, the quantity seized this time is much bigger,” a police official said, adding it was necessary to get to know from where the substance was received.

A case under the Narcotics Drugs and Psychotropic Substances Act, 1985, has been registered against the youth, police said.