Sainthia is a city and a municipality in Suri Sadar subdivision of Birbhum district in the Indian state of West Bengal. The city is known as business city of Birbhum district. The city is under the jurisdiction of Sainthia police station. Sainthia is the fourth most populous city in Birbhum district and 95th most populous city in West Bengal. The city covers an area of 10 km2 and had a population of 44,601 in 2011. Located on the banks of Mayurakshi River, Sainthia has been a major human settlement. The city is famous for Nandikeshwari Temple, one of the Shakti Peethas in Indian subcontinent.

Panrui is a village in Sainthia and a community development block in the Suri Sadar subdivision of the Birbhum district, West Bengal, India. It is about 160 km (99 mi) from Kolkata and 18 km (11 mi) from Visva-Bharati University. It is also 18 km (11 mi) from Siuri, the sadar town of Birbhum district. It has a population of 1,146.