People talk about reaching India for Christ. But reaching India is NOT the same as reaching English speakers in towns. This is because around 70% of the Indian population lives in rural areas - outside the towns. Most of these people do not speak English, but only local languages or possibly just a local dialect.
Even in the towns and cities, there are still LOTS of people who do not speak English. We can reach some but not all of the Indian city dwellers using the English language.