India and Indonesia on Tuesday signed 18 agreements worth $ 15.1 billion in sectors like mining, infrastructure and manufacturing. "I very much welcome the signing of 18 business MoUs in infrastructure, manufacturing, mining and other areas worth $15.1 billion," Indonesian President Susilo Bambang Yudhoyono said at a business meeting here. Speaking on the occasion, Indian Commerce and Industry Minister Anand Sharma said there are huge opportunities available for businessmen of both countries, according to a report of the Press Trust of India.