Purwa is a town and nagar panchayat in Unnao district, Uttar Pradesh, India. It is located 32 km southeast of Unnao, the district headquarters. Roads connect it with several major cities including Unnao, Lucknow, Kanpur, and Rae Bareli. As of 2011, its population is 24,467 people, in 4,128 households.

Unnao district is a district of Uttar Pradesh state in central India. The city of Unnao is the district headquarters. The district is part of Lucknow Division.