KATHMANDU: Police said they arrested two persons, a woman and her son, in possession of controlled drugs. Laxmi Khadka (42), a permanent resident of Phasku-5 in Dolakha district, and her 26-year-old son Aashish were nabbed from their rented room in Naikap, Chandragiri-23 of Kathmandu on Thursday. A team deployed from the Kalimati-based Metropolitan Police Circle had raided their room today. Meanwhile, police recovered three different drugs from their room. Further investigation is underway.