Three people were taken into custody and a case has been registered under the NDPS Act, Director of Telangana's Drugs Control Administration Arun Sabharwal said.
The cost of ephedrine in the black market is about Rs 5 lakh per kilogram, the official said.
Ephedrine is a narcotic precursor chemical which is used to manufacture illicit narcotic drugs and psychotropic substances like meth and crystal, the official said.