Bijapur/ Malkangiri, Oct 02 (ANI): A Maoist was killed in an encounter in Chhattisgarh while one was held in Odisha on Thursday. The Maoist named Kosa Ayatu, belonging to Maoist cultural front CNM, was killed in a police encounter where a police official was also injured. The deceased was carrying arms and ammunition. Superintendent of Police (SP) of Bijapur district of Chhattisgarh, KL Dhruv said the Maoists had attacked the police helicopter during the encounter. Meanwhile, another rebel was arrested in Malkangiri district of Odisha during a joint operation by the personnel of India's paramilitary Border Security Force (BSF) and the district police. Malkangiri's Superintendent of Police, Mitrabhanu Mohapatra said the Maoist identified as Singa Kattami alias Mahesh is a resident of Tagoorkota village and was arrested from Sudhakonda area.