CPI (Maoist) leader and a member of its central committee, Arun Kumar Bhattacharjee, known by his nom de guerre 'Kanchan Da', was arrested in Cachar district of Assam, a top police officer said on Monday. He was arrested from a tea garden under Udharbond police station on Sunday evening along with one of his associates Akash Orang alias Rahul, Guwahati Police Commissioner Harmeet Singh told a press conference here.