Officer-in-charge of Manipur Narcotics and Affairs of the Border (NAB) R K Bikramjit Singh said the personnel seized 1,03,500 tablets from a youth at Imphal's Tulihal airport on Sunday, the day an Army colonel and five others were arrested for carrying illicit drugs.
The tablets were marked with PETAS-TR which is said to indicate high contents of Pseudoephedrine. They were found inside three boxes of different sizes.
The youth was identified as Rajkumar Rai hailing from Tulasipur in Bihar.
The youth was later arrested for further investigation, he said.
Singh said the drugs would be worth about Rs eight lakh in the market.