KATHMANDU: Police arrested two persons in possession of 20 gram brown heroin from Thamel, Kathmandu Metropolitan City-29 of Kathmandu on Thursday. Police have arrested Sarjan Kumar Shahi (20) and Datta Shahi (19) of Chilkhaya VDC-9 in Kalikot district. The seized drug costs around Rs 130,000 in the current market, according to police. Further investigation is underway.