KATHMANDU: Police said they arrested seven persons from different locations of Kathmandu in possession of contraband drugs. Santosh Thakur (18) from Motihari of India and Bishal Pandit (28) from Gajuri-1 of Dhading were arrested from Kalanki Chok, KMC-14 on Saturday. A team deployed from the Metropolitan Police Circle, Kalimati, seized 58 gram brown heroin from them. Likewise, five persons were arrested from a guesthouse in Balaju of Kathmandu on Friday. A joint police team from the Metropolitan Police Crime Division and Metropolitan Police Circle, Balaju, detained them from the Famous NK Guesthouse, Machhapokhari, KMC-16. They were held in possession of 4.5 kg hashish. Police are looking into the case.