They were carrying two unusually large bags, and their behaviour also appeared suspicious, said officials.
An inspection of the bags led to the recovery of 20.86 kg of ganja valued at Rs 4.17 lakh, an official said, adding that the Sheikh and Kotki have been arrested under the Narcotic Drugs and Psychotropic Substances (NDPS) Act.
Investigations are underway to trace the origin of the banned substance and identify the intended recipients or distribution network, the GRP added. PTI COR NR