Eastern Indo-Aryan languages
Introduction Major Indo-Aryan languages of South Asia; Eastern Indo-Aryan languages in shades of yellowThe '''Eastern Indo-Aryan languages''', also known as '''Māgadhan languages''', are spoken throughout the eastern region of the subcontinent (East India, Bangladesh, Assam), which includes Bihar, Uttar Pradesh, Jharkhand, Bengal region, Tripura, Assam, and Odisha; alongside other regions surrounding the northeastern Himalayan corridor. Bengali is official language of Bangladesh and the state of West Bengal, Tripura and the Barak valley of Assam while Assamese and Odia are the official languages of Assam and Odisha, respectively. The Eastern Indo-Aryan languages descend from Abahattha, which descends from Magadhan Apabhraṃśa and ultimately from Magadhi Prakrit.
Classification The exact scope of the Eastern branch of the Indo-Aryan languages is controversial. All scholars agree about a kernel that includes the Odia cluster and the Bengali–Assamese languages, while many also include the Bihari languages. The widest scope was proposed by Suniti Kumar Chatterji who included the Eastern Hindi varieties, but this has not been widely accepted.When the Bihari languages are included, the Eastern Indo-Aryan languages fall into four language groups in two broader categories:===Western Magadhan===*'''Bihari'''**Bhojpuri***Caribbean Hindustani** Magahi***Khortha  ** Maithili ***Bajjika (Western Maithili)***Angika (Southern Maithili)***Central Maithili ***Eastern Maithili***Thēthi***Jolaha***Kisan**Sadanic***Sadri (Nagpuri)***Kurmali (Panchpargania)**'''Unclassified Bihari'''***Tharuic'''****Chitwania Tharu****Dangaura Tharu****Sonha****Kathariya Tharu****Kochila Tharu*****Western Kochila*****Central Kochila (Saptariya Tharu)*****Eastern Kochila (Morangiya, Khawas Tharu)****Rana Tharu****Buksa****Majhi****Musasa***Kumhali***Kuswaric****Danwar****Bote-Darai*****Bote*****Darai===Eastern Magadhan===* '''Bengali–Assamese''':** Gaudic*** Bangali  (Dhakaiya Bengali)*** Bishnupriya Manipuri*** Chakma*** Chittagonian*** Manbhumi (Western Bengali)*** Noakhailla (Southeastern Bengali)*** Rarhi (South-Central Bengali)*** Rohingya*** Sundarbani (Southern Bengali)*** Sylheti*** Tanchangya*** Varendri  (North-Central Bengali)** Kamarupic:*** Eastern Assamese*** Kamrupi (Western Assamese)*** Goalpariya (Western Assamese)*** Rangpuri*** Surjapuri*** Rajbanshi*** Hajong* '''Odia languages'''** Odia Family ***Baleswari (Northern Odia)*** Kataki (Central Odia)***Sambalpuri (Western Odia) ***Sundargadi (Northwestern Odia)***Kalahandia (Southwestern Odia) ***Desia (Koraputia Odia) ***Ganjami (Southern Odia)** Bodo Parja** Bhatri** Reli** Kupia* '''Halbic''':** Halbi, Kamar, Bhunjia, Nahari
Features Grammatical features of the Eastern Indo-Aryan languages: Case  Bengali  Assamese  Odia  Rajbangshi  Surjapuri  Maithili  Bhojpuri  Tharu  Sylheti Instrumental  -t̪e, -ke d̪ie  -e, -er-e, di, -e-di  -e, -re, -d̪ei  -d̪i  sɛ  -e,e˜, sə˜, d̪ea    le, leka  -re, di Dative  -ke, -ere  -k, -ɒk  -ku  -k, -ɔk  -k, -ɔk  -ke˜  -ke  -hənə  -gu, -gur Ablative  -t̪ʰeke  -pɒra  -u, -ru, -ʈʰaru, -ʈʰiru  -hat̪ɛ, t̪ʰaki  -sɛ  -sə˜, -k -karəne    se  -lagi, -tône Genitive  -r, -er  -r, -ɒr  -rɔ  -r, -ɛr  -r, -ɛr  -ker (-k)  -kæ  -ək  -r, -ôr Locative  -e, -t̪e  -t, -ɒt  -re  -t̪, -ɔt̪  -t̪, -ɔt̪  e, me, -hi, -tə    -mə  -t, -ô
References
External links *  ''A Comparative dictionary of the Bihārī language, Volume 1'' By August Friedrich Rudolf Hoernle, Sir George Abraham Grierson (1885)*