While English is not a first language for the vast majority, it is used a lot in daily life because the native languages vary wildly by area and nobody understa

While English is not a first language for the vast majority, it is used a lot in daily life because the native languages vary wildly by area and nobody understands them all. English is the common denominator, not just for communicating with foreigners but also to other Indians from other areas. The focus on primary language makes it seem less used than it actually is.