Hindi, the official language of India is predominantly spoken all over the country in general and in the States/Union Territories of Uttar Pradesh, Bihar, Madhya Pradesh, Rajasthan, Haryana, Chhattisgarh, Jharkhand, NCT of Delhi, Uttarakhand, West Bengal, Himachal Pradesh and Chandigarh in particular. It is specified in Schedule VIII of Indian Constitution. Hindi falls under the central group of Indo-Aryan family of languages. Linguistically Hindi area encompasses broad dialect group areas named as Western Hindi (Braj Bhasa, Bundeli, Kanauji, Bangaru etc.), Eastern Hindi (Awadhi, Chhattisgarhi, Bagheli, etc.), Speech of Rajasthan (Rajasthani, Marwari, Mewari, etc.), Bihari (Bhojpuri, Maithili, Magahi, etc.) and Pahari (Garhwali, Kumauni, Mandeali, Kulvi, etc.). These broad dialect group areas along with more or less one unifying standard speech, i.e., Standard Hindi on broad intelligibility level presents a composite picture. Besides, a large number of mother tongues also have been returned from these dialect areas through different Censuses. In Census 2011 also, these mother tongues have been classified and treated according to their speakers' strength (satisfying the criterion of 10,000 and above at all India level) and 56 of them (Awadhi, Baghati/Baghati Pahari, Baghel/Baghel Khandi, Bagri Rajasthani, Banjari, Bhadrawahi, Bhagoria, Bharmauri/Gaddi, Bhojpuri, Bishnoi, Braj Bhasha, Bundeli/Bundelkhandi, Chambeali/Chamrali, Chhattisgarhi, Churahi, Dhundhari, Garhwali, Gawari, Gojri/Gujjari/Gujar, Handuri, Hara/Harauti, Haryanvi, Hindi, jaunpuri/Jaunsari, Kangri, Khariboli, Khortha/Khotta, Kulvi, Kumauni, Kurmali Thar, lamani/Lambadi/Labani, Laria, Lodhi, Padari, Palmuha, Panchpargania, pando/Pandwani, Pangwali, pawari/Powari, Puran/Puran Bhasha, Rajasthani, Sadan/Sadri, Sirmauri, Sondwari, Sugali, Surguja and Surjapuri) have been presented separately and grouped under Hindi as its variants and the remaining mother tongues which returned less than 10,000 speakers as variants of Hindi have been included under 'Others'. Devanagari script is used in writing Hindi.