English is lingua franca regardless of social or economic status.
Every child gets to learn 3 languages : one local language, One regional elective (or Hindi), and English.
English is now pervasive enough that transliterated words are common in all languages and are being used natively. People use English words and idioms without even realizing they are speaking English. You will find even in remotest corners someone who will understand and converse in rudimentary English (especially the youngsters).