Puducherry is a union territory of India. It has four administrative divisions: four districts, viz. Pondicherry, Mahé, Yanam and Karaikal. Pondicherry district has the largest area and population. Mahé district has the smallest area and population. All the four districts retained borders of the French India, and were organised as a union territory of Puducherry after the de facto transfer of French India territories to India in 1954.