The infrastructure sector remains the largest contributor to India's GDP among key sectors like IT-ITES, realty, power, and energy according to a recent survey. Many Indian BPO companies now have more employees working overseas than in India as they expand operations abroad to locations like the US, Argentina, Kenya, South Africa, Australia, Philippines, China, Guatemala and Nicaragua to be closer to customers. While operating in higher cost overseas locations squeezes margins, BPO companies say their overall profits are still growing as the size of their business and revenues continue to increase.