How is Delhi different from New Delhi?

While often used interchangeably, Delhi and New Delhi are distinct entities. Delhi is a union territory officially known as the National Capital Territory (NCT), covering approximately 573 square miles. It is an ancient region with a rich history, home to historic landmarks like the Red Fort and Humayun’s Tomb.1

New Delhi is a geographically smaller district—spanning about 16.5 square miles—located within the NCT. Planned and built in the early 20th century under British rule, it serves as the seat of India’s central government. It houses critical national institutions, including the Parliament, Rashtrapati Bhavan, and the Supreme Court.12

While Delhi possesses its own elected legislature and chief minister, New Delhi is governed at the municipal level by the New Delhi Municipal Council. New Delhi’s wide, planned avenues contrast sharply with the dense, winding streets of older districts like Old Delhi.12