Pattukkottai is a major town in Thanjavur district in the Indian state of Tamil Nadu and also important town in Delta districts and Commercial town of Thanjavur, Thiruvarur and Pudukkottai district Coastal areas. The town came to prominence throughout Southern India after the construction of the fort by Vanaji Pandithar, a feudatory of the Thanjavur Maratha ruler Shahuji I in 1686–87.