brick

David Gogoi and his two pals, Mausam Taluqdaar and Rupam Chowdhary, founded Zerund Manufacturing Private Limited after being denied 30 times. They began with a mere Rs 20 lakh four years ago and have now risen to a valuation of Rs 40 crore. They planned to create an eco-friendly brick out of waste materials. It is 15% less expensive than normal brick and keeps the house cool.