Which one is the largest district of Puducherry

The Union Territory of Puducherry comprises four districts: Puducherry (also called Pondicherry), Karaikal, Mahe, and Yanam. Among these, Puducherry district is the largest in terms of area.

Puducherry district is located on the eastern coast of India, surrounded by the state of Tamil Nadu. It covers an area of approximately 293 square kilometers, which makes it the largest among the four districts.

In comparison:
Karaikal is also located on the eastern coast but is smaller in area than Puducherry district.
Yanam, located in Andhra Pradesh, and Mahe, located in Kerala, are much smaller in area.

Therefore, based on geographical size, Puducherry district is the largest district in the Union Territory of Puducherry.