The racket was busted following information provided by the arrests of five persons from the city, he said.
"Five gang members involved in trafficking were intercepted late last night and based on their information a sixth member of the gang was nabbed today morning," the official said.
During interrogation, t was found that the racket, operating from two flats in the city and one in Salt Lake, was functional in the state as well in the neighbouring states of Jharkhand, Bihar and Himachal Pradesh, he said adding that the source of the drug was from Kullu in Himachal Pradesh.
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