With an estimated net State Domestic Product (FY 2007) of 118,200 crore (US$26.24 billion) in nominal terms and 336,400 crore (US$74.68 billion) in PPP terms,Delhi is the largest commercial center in northern India. In 2007, Delhi had a per capita income of 66,728 (US$1,481.36) at current prices, the third highest in India after Chandigarh and Goa as of 2006–07.
The tertiary sector contributes 70.95% of Delhi's gross SDP followed by secondary and primary sectors, with 25.20% and 3.85% contribution, respectively. Delhi's workforce constitutes 32.82% of the population showing an increase of 52.52% between 1991 and 2001. Delhi's unemployment rate decreased from 12.57% in 1999–2000 to 4.63% in 2003. In December 2004, 636,000 people were registered with various employment exchange programmes in Delhi.
In 2001 the total workforce in all government (union and state) and quasi-government sector was 620,000. In comparison, the organised private sector employed 219,000. Key service industries include information technology, telecommunications, hotels, banking, media and tourism. Delhi's manufacturing industry has also grown considerably as many consumer goods industries have established manufacturing units and headquarters in and around Delhi. Delhi's large consumer market, coupled with the easy availability of skilled labour, has attracted foreign investment in Delhi. In 2001, the manufacturing sector employed 1,440,000 workers while the number of industrial units was 129,000.
Construction, power, telecommunications, health and community services, and real estate form integral parts of Delhi's economy. Delhi has India's largest and one of the fastest growing retail industries. As a result, land prices are booming and Delhi is currently ranked the 7th most expensive office hotspot in the world, with prices at $145.16 per square foot. As in the rest of India, the fast growth of retail is expected to affect the traditional unorganized retail trading system.