The central anti-narcotics agency identified the woman sepoy as Pravinta Wasnik (25), posted at its zonal office here, and her alleged associate and drug offender Gulam H Azad.
Officials said Wasnik was on the vigilance radar of the Narcotics Control Bureau (NCB) for quite sometime after she reportedly exhibited some "suspicious activities" and hence was posted out to its zonal office in Ranchi in November last.
However, they said, the sepoy allegedly continued to be in touch with Azad even as she "overstayed" on leave.
"While 691 grams of mephedrone called 'meow meow' in the drugs black market parlance, was recovered from Azad, a search of Wasnik's house led to the recovery of another 228 grams of the contraband," they said.
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The duo was arrested by NCB and produced in a local court here today, the officials said, adding they have been charged under various sections of the Narcotics Control and Psychotropic Substances Act (NDPS).
He was currently out on bail in a similar case, they added.
In 2009, NCB Zonal Director in Chandigarh and IPS officer Saji Mohan was arrested by the Mumbai ATS for alleged illegal possession of drugs.
Mephedrone or 'meow meow' is a recreational drug, which when abused causes euphoria, stimulation and an improved mental function. The drug, according to sleuths, is gaining currency in 'rave' parties and other celebration joints frequented by youngsters.
The NCB officials added that they were probing all angles about the indulgence of its women staffers, whether in self-abuse or drugs trafficking.