It is still very common to see people pressing the wrong button when calling the lift. They look at the position of the lift and press the corresponding button to make it come to their floor. Very often, confused by this logic, number are those that press both buttons! It just put a wide smile on your face… unless you’re in a hurry 🙁
It is important to display signs in English to attract the foreigners as well as the Indian tourist from other Indian states. Although India has Hindi as its national language, it is only prevalent in northern states of India… so English remains the defacto national language for many educated and affluent class.