Estimates of the total number of speakers of English in India vary from around 4-20 percent of the population, which given India's current population of around 1 billion makes it one of the largest English-speaking countries in the world. English is an 'associate official' language used alongside 15 other major languages, including Hindi. It is widely used in the domains of commerce, the legal system, military, media, pan-Indian and regional administration. The varieties of English spoken and written across the region are referred to collectively as 'Indian English'. Population: c. 1 billion.

Reading
Kachru, Braj (1983) The Indianization of English: The English Language in India. Delhi: Oxford University Press.
Mehrotra, Raja Ram (1998) Indian English: Texts and Interpretation. Amsterdam: Benjamins.