India has one of the fastest growing service sectors in the world with an annual growth rate above 9% since 2001, which contributed to 57% of GDP in 2012–13. India has become a major exporter of IT services, Business Process Outsourcing (BPO) services, and software services with $177 billion revenue in FY 2019. The IT industry continues to be the largest private-sector employer in India. India is the second-largest start-up hub in the world with over 3,100 technology start-ups in 2018–19. The Indian automobile industry is one of the largest in the world with an annual production of 21. 48 million vehicles (mostly two and three-wheelers) in 2013–14. India had $600 billion worth of retail market in 2015 and one of world's fastest growing e-commerce markets.