Noida, short for New Okhla Industrial Development Authority, is a planned city located in Gautam Buddha Nagar district of the Indian state of Uttar Pradesh. Noida is a satellite city of Delhi and is a part of the National Capital Region (NCR) of India. Noida is considered to be India's greenest city with nearly 50% green cover, the highest of any city in India. It is also ranked the cleanest city in medium category cities (3 lakhs to 10 lakhs population) and 4th cleanest city among cities with less than 1,000,000 people.