Dun & Bradstreet (D&B), the world’s leading provider of global business information, knowledge and insight, has listed Chennai headquartered MARG Ltd among ‘India’s Top 500 Companies 2010’.The D&B listing is based on a stringent evaluation process by the ‘Economic Analysis Group’ and the rankings are based on financial parameters like total income, net profit, net worth and market capitalisation, among others. MARG has over two decades of reassuring presence in infrastructure development and is today pioneering the development of economic growth centres. The company’s portfolio spans the entire infrastructure value chain, and it is expanding its sectoral presence with airport projects in Bellary and Bijapur and a multi-level car parking.