WPP and Bharti chiefs talk acquisitions and Africa

Sir Martin Sorrell and Sunil Mittal

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Sunil Mittal, the founder and chief executive of Bharti Enterprises, travels from his headquarters in New Delhi, India, to London to meet Sir Martin Sorrell, whose advertising and marketing services group, WPP, began in 1985 and now operates across the globe.

When they meet Sir Martin tells Mr Mittal about one of his early acquisitions, while Mr Mittal gives his views on the rise of Africa.

Special report: The Ideas Exchange