The arrested individuals have been identified as Joseph Lanluia, 22, a resident of Aizawl, and F. Lalmangaizowala, aged around 30, hailing from Champai area in Mizoram.
According to the police, 4 kg methamphetamine was seized from their possession.
The drugs were kept hidden in their luggage.
Additional Superintendent of Police, Cachar district, Subrata Sen said: “After receiving an input, the police conducted a raid at the airport with the help of CISF on Thursday afternoon and arrested the two individuals. They were waiting to board a flight for Kolkata.”
Sen further said the arrested individuals had brought drugs from Mizoram and were going to Kolkata.
Both are being questioned by the police, the senior official said.