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| Country | Official Language(s) | Native Name | Other Languages Spoken |
| Bangladesh | Bengali | Banglades | |
| Bhutan | Dzongkha (dialect of Tibetan) | Tru | |
| India | Hindi (20%) English (0%) |
Bharat India |
Marathi (7%), Bengali (7%), Telugu (7%), Bihari (including all dialects) (6%), Tamil (6%), Urdu (dialect of Hindi) (5%), Gujarati (5%), Kannada (4%), Malayalam (4%), Oriya (3%), Panjabi (3%), Awadhi (2%), Assamese (2%), Chhattisgarhi (1%), Rajastani (1%), Haryani (dialect of Hindi) (1%), Deccan (1%) |
| Nepal | Nepali | Nepal | |
| Sri Lanka (Ceylon) | Sinhalese (72%) | Srilanka | Tamil (27%) |
| State | Principal Language | Native Name |
| Andhra Pradesh | Telugu | Andhra Desamu |
| Assam | Assamese | Asam |
| Bihar | Bihari (several dialects) | Bihar | Delhi | Hindi | Dilli |
| Goa | Marathi | Goa |
| Gujarat | Gujarati | Gujarat |
| Haryana | Haryani (dialect of Hindi) | Hariyana |
| Himachal Pradesh | Hindi | Himachal Pradesh |
| Jammu and Kashmir | Urdu | Jammun Kashmir |
| Karnataka | Kannada | Karnataka |
| Kerala | Malayalam | Keralam |
| Madhya Pradesh | Hindi | Madhya Pradesh |
| Maharashtra | Marathi | Maharashtra |
| Meghalaya | Khasi | Meghalaya |
| Orissa | Oriya | Orissa or Utkala |
| Panjab | Panjabi | Panjab |
| Rajasthan | Rajasthani (Marwari) | Rajasthan |
| State and Union Territories of Assam | Various | |
| Tamil Nadu | Tamil | Tamil Nadu |
| Uttar Pradesh | Hindi | Uttar Pradesh |
| West Bengal | Bengali | Paschim Bang |