over 6 years) out of which males numbered 35,581 (73.98% of the male population over 6 years) and females numbered 25,167 (52.17% of the female population over 6 years). The gender disparity (the difference between female and male literacy rates) was 21.81%. census, literacy in Gumla district was 66.92%. Literacy in Jharkhand was 67.63% in 2011. Literacy in India in 2011 was 74.04%. See also – List of Jharkhand districts ranked by literacy rate Language and religion According to the Population by Mother Tongue 2011 data, in the Sisai subdistrict, Hindi was the mother-tongue of 72,723 persons forming 62.53% of the population, followed by (number of persons and percentage of population in brackets) Kurukh (34,677/ 29.68%), Urdu (7,127/ 6.10%), Kharia (1,845/ 1.58%), and persons with other languages as mother-tongue (472/ 0.40%). Persons with Hindi as mother-tongue included 15,508 persons having Sadri/ Sadan, 49,754 persons having Nagpuri as mother-tongue. Note: An attempt has been made to include all language groups each with at least 300 persons as their mother-tongue and only those groups with less than 300 persons as their mother-tongue in the census data are normally included in the “other languages” category. Comparatively smaller language groups with 200+ persons as their mother-tongue are mentioned in the text. Many languages have sub-groups. Those who are interested can see the reference for more details. Hindi is the official language in Jharkhand and Urdu has been declared as an additional official language. According to the Population by Religious Communities 2011 data, in the Sisai subdistrict, ‘Other religious communities’ numbered 65,843 and formed 56.35%of the population, followed by (number of persons and percentage of population in brackets) Hindus (34,362/ 29.31%), Muslims (12,311/ 10.54%), Christians (3,639/ 3.31%), and persons who did not state their religion (689/ 0.59%) ). Economy Overview 80% and over of the population of Gumla district were in the BPL category in 2004–2005. In 2011–12, the proportion of BPL population in Gumla district came down to 36.75%. According to a study in 2013 (modified in 2019), "the incidence of poverty in Jharkhand is estimated at 46%, but 60% of the scheduled castes and scheduled tribes are still below poverty line." Livelihood In Sisai CD block in 2011, amongst the class of total workers, cultivators numbered 30,812 and formed 59.07%, agricultural labourers numbered 15,280 and formed 29.29%, household industry workers numbered 899 and formed 1.72% and other workers numbered 5,173 and formed 9.92%.