Kolkata (West Bengal) [India], May 29: BST Infratech Ltd. is one of the largest manufacturers, suppliers and exporters of superior-quality Iron & Steel Products. Established in 2007 by Sri Gopal Kumar Agarwal, the company grew exponentially throughout the years and has become an integral part of India's ever-growing, progressive and advanced iron and steel industry. The company has been around for 16 years, and in these years, they have become a very popular brand among its customers.