KATHMANDU: Three persons were arrested with possession of 500 gram heroin from Gongabu of the Capital on Friday. A team deployed from the Narcotics Control Bureau had nabbed Om Prakash Prasad Yadav (25), Bablu Alam (20) and Hafij Alam (41) from the Shiva Temple premises in Gongabu, KMC-29 three days ago. They were permanent residents of Bishrampur-4 of Bara, police said. Further investigation is underway.