KATHMANDU : Two persons, including an 18-year-old girl, have been arrested from Tarkeshwar in Kathmandu with 6 kg of opium. Among the arrested are Pramila Raut of Bhimeshwor Municipality-6 of Dolakha and Dilip Bishwakarma, 22, of Triveni Municipality of Jajarkot. Both were living in Tarkeshwar, Kathmandu. According to the crime branch of the metropolitan police, the two were arrested while walking in a bag. According to the department, opium is bought at Rs 150,000 per kg and sold at Rs 800,000 per kg.