New Delhi has a population of 249,998. Hindi and Punjabi are the most widely spoken languages in New Delhi and the lingua franca of the city. <answer>English</answer> is primarily used as the formal language by business and government institutes. New Delhi has a literacy rate of 89.38% according to 2011 census, which is highest in Delhi.
What language is used for formal purposes by business and government institutes of New Delhi?
English