The Thane police from Maharashtra have exposed a drug-making factory in Uttarakhand and arrested three persons involved in its operations near the Nepal border, an official said on Wednesday, reported news agency PTI.

The success in the northern state followed an investigation into the seizure of drugs in Thane earlier, Deputy Commissioner of Police (Crime) Amarsingh Jadhav told reporters.

The Thane city police on June 1 arrested two persons, identified as Vishal Singh and Mallesh Shevla, after recovering 10.93 grams of mephedrone valued at Rs 35,000, he said. The duo told the police that they had procured the banned substance from Uttarakhand, reported PTI.