To match feature BRITAIN-BRAINDRAIN/
A labourer works inside the Jawaharlal Nehru stadium in New Delhi, which is undergoing refurbishment as a venue for the 2010 Commonwealth Games, in this October 26, 2009 file photo. Arup Chatterjee developed nanotechnology techniques in India for a decade and then went on to invent nano-metal enhanced paints and coatings and form his company I-Can Nano. The entire stadium and complex for the Commonwealth Games in Delhi 2010 has been painted with I-Can Nano paints. Chaterjee has now set up his European headquarters in Britain and secured funding to grow the business, eyeing the European market and beyond. Picture taken October 26, 2009. To match feature BRITAIN-BRAINDRAIN/ REUTERS/B Mathur/Files (INDIA - Tags: BUSINESS SPORT CONSTRUCTION)