Rourkela: Biramitrapur police in Sundargarh district arrested a 35-year-old man on Wednesday for allegedly possessing 1 kg of ganja.Police said the accused, identified as Mathura Singh, was intercepted at Talasera Chowk on Tuesday afternoon. Acting on a tip-off, additional tehsildar of Biramitrapur reached the spot. A search was conducted in presence of witnesses and police personnel, leading to recovery of around 1 kg of ganja from a plastic bag Singh was carrying. The contraband was seized and Singh was taken to the police station for questioning. He was arrested on Wednesday.Police said further probe is underway.