From vegetable oil to hi-tech

Bangalore's other IT tiger, Wipro, has a rather different history.
Wipro had its origins as a food company, selling vegetable oil - and its chief executive, Azim Premji, abandoned business school at Stanford in the US when his father died and he had to take over the family firm.
The company tried diversifying in many areas, including soap and computers, before settling on IT services as its main money-maker.
It has grown its business over the years by buying up other companies, and recently went on a buying spree in Europe and the US.
Like many other big Indian companies, it is still family-owned, and despite floating some shares on the stock market, it is still owned by Mr Premji, making him one of India's richest men.
The soft-spoken Mr Premji told the BBC that he recognised that there were genuine concerns in Europe about whether outsourcing would cost jobs.
"The Western world loves liberalisation, provided it doesn't affect them. That's the case all over the world. Liberalisation is a great word if it doesn't affect you."