Although the total Odia population is unclear, 2001 Census of India puts the population of Odisha at around 36 million. There are smaller Odia communities in the neighbouring states of West Bengal, Jharkhand and Chhattisgarh. Most Odias in West Bengal live in the districts of Midnapore and Bankura. Surat in Gujarat also has a large Odia population, primarily diamond workers in the southern district of Ganjam. Bengaluru and Hyderabad have sizable Odia population due to an IT boom in late 2000s. Some Odias have migrated to Bangladesh where they are known as Bonaz community.