Puducherry, also known as Pondicherry, is a union territory of India, consisting of four small geographically unconnected districts. It was formed out of four territories of former French India, namely Pondichéry, Karikal (Karaikal), Mahé and Yanaon, excluding Chandannagar (Chandernagore), and it is named after the largest district, Puducherry, which was also the capital of French India. Historically known as Pondicherry, the territory changed its official name to Puducherry on 1 October 2006.