Delhi is the national capital with a population of nearly 17 million. It has the highest per capita income in the country. During 2012-13, the growth in per capita income was around 7 percent as compared to the national figure of 3 per cent. The sustained growth in per capita income has been associated with a reduction in poverty to single-digit figures (9.9 per cent) in 2011-12, from approximately 13 per cent in 2004-05.

Patna, the capital of the state of Bihar, is one of the fastest growing cities in India. Its population increased by an annual average of 5% between 1991 and 2001, has reached 1.68 million (Census of India, 2001). The state of Bihar too is growing every fast. It is currently at 104 million, which is an increase of over 25% from the 80 million recorded in the 2001 Census. This makes Bihar one of the fastest growing states in India,