Allahabad district, officially known as Prayagraj district, is the largest and the most populous district of Uttar Pradesh state of India. The district headquarters is Allahabad which was renamed Prayagraj at the same time as the district was renamed. The District is divided into blocks within tehsils. As of 2011, there are 20 blocks in eight tehsils. The Allahabad division includes the districts of Fatehpur, Kaushambi and Allahabad, with the western Prayagraj District becoming part of the new Kaushambi district. The administrative divisions are Phulpur, Koraon, Meja, Sadar, Soraon, Handia, Bara, Shringverpur and Karchana.