After trying various business options, Delhi School of Engineering alumni Neha Juneja and Ankit Mathur hit upon creating a cooking stove for rural households. They registered Greenway Grameen Infra (GGI) in 2010 and started selling the Greenway smart stove the following year. Compared to the mud chulha used by 160 million rural households in India, the GGI stove burns 70% less fuel and has much less emission. “There is a Rs.10,000 crore market for such products,” says Juneja.