The federal government of India has designated Hindi as the official language of the Union and English as a semi-official language. Hindi is spoken by the largest number of people in the country (about 40%) as their mother tongue, but many other languages are also spoken, such as Bengali (West Bengal, etc.) and Telugu (Ayodhya Pradesh, Telangana, etc.).

Reference Japan, China, Korea, Singapore, Vietnam, Germany, and UAE Central　Intelligence Agency, "The World Factbook: LANGUAGES" Retrieved July 27, 2020, from https://bit.ly/2ErAba3 Taiwan National Statistics, Republic of China (Taiwan) "2010 Population and housing Census", "Table 6 Languages used at home for the resident nationals aged 6 years and over by sex and age" Retrieved July 27, 2020, from https://bit.ly/2X06mne Hong Kong, Thailand, Indonesia, Philippines, India, United States, United Kingdom United Nations Statistics Division "Demographic Statistics Database: Population by language, sex and urban/rural residence" Retrieved July 27, 2020, from https://bit.ly/3f7ChbQ