Pathanamthitta district is a district in the southern part of Kerala, India. The district headquarters is in the town of Pathanamthitta. However, Tiruvalla city is the largest commercial centre in the district. The district is surrounded by the Kottayam, Idukki, Alappuzha and Kollam districts. It has a border with the state of Tamil Nadu in the east. Pathanamthitta, Tiruvalla, Adoor, Konni, Ranni and Mallapally are the taluks in the district. There are four municipalities in Pathanamthitta. They are Tiruvalla, Adoor, Pathanamthitta and Pandalam.