Swraj Paul-led Caparo Group today said it would raise its investment and exposure in India to achieve an over six-fold increase in turnover to $1 billion within the next ten years."We are growing fast and are very keen on continuously investing in India. We plan on doing at least a billion dollars of sales here in the next 7-10 years," Group's CEO Angad Paul said after visiting British Prime Minister Gordon Brown inaugurated the group's auto part manufacturing unit.The Rs 83 crore facility at Greater Noida, which caters for automakers such as Honda, is already operational but was formally inaugurated by Brown at a function in the capital.