Abhijeet Konduskar, 29, whose family runs travel company Konduskar Travels, was into illegal trade of the party drug, ketamine hydrochloride, for almost two years, said Directorate of Revenue Intelligence (DRI) officials a day after his arrest.
On Wednesday, DRI officials seized more than 1,000 kg of the party drug, worth around Rs3.6 crore, and arrested Konduskar and three others.
Konduskar also runs Kamud Drugs Private Limited -ketamine hydrochloride was manufactured in its Sangli factory.
The DRI arrested two employees of Kamud Drugs - Nilesh Mehta and Sandeep Ahire - and one Jayanthilal Kothari who received the drug on behalf of a UK-based person named Sean.
DRI sources said the firm, which manufactures ketamine, had started its illegal sale two years ago. The DRI is investigating how munch of the drug was illegally diverted by Konduskar in the last two years.
Sources said that though ketamine costs Rs35,000 per kg legally, in the illegal Indian market, one kg of the drug would cost around Rs1 lakh.
"In the international market, it costs more than Rs10 lakh a kg," said a DRI official, requesting anonymity, adding that the international price will further rise as ketamine has been brought under the provisions of the Narcotic Drugs and Psychotropic Substances Act since February.
DRI officials had been keeping a watch on the drug movement from the factory for more than a month. After it was confirmed that the drug was illegally diverted, they conducted the raids.
The DRI tracked down a Tata Sumo in which 200 kg ketamine was brought by Ahire to be delivered to Kothari at Andheri. More than 800kg of the drug was seized that had been removed from the Sangli factory and kept in a shed for delivery.
DRI officials are also tracking Sean, who is suspected to be the major supplier of the drug in the illegal European market.
The DRI, on Thursday, stopped seven parcels of ketamine at the Air Cargo Complex, being sent abroad through courier.
The ketamine was manufactured at Kamud Drugs' factory.
Advocate Dinesh Tiwari, who is representing Konduskar, refuted allegations that his client was into illegal trade of ketamine for the last two years. "If it was so, then why did the DRI not mention this in the remand application?" asked Tiwari.