Central Bank of India, a government-owned bank, is one of the oldest and largest commercial banks in India. It is based in Mumbai. The bank has 4100 branches and 270 extension counters across 27 Indian states and three Union Territories. At present, Central Bank of India has one overseas office, which is a joint venture with Bank of India, Bank of Baroda, and the Zambian government. The Zambian government holds 40 per cent stake and each of the banks has 20 per cent.