Hero Realty has forayed into the Delhi-NCR property market and will invest about Rs 900 crore over the next four years to develop a premium housing project in Gurugram, a top company official said. Hero Realty, the real estate arm of Sunil Kant Munjal-led Hero Enterprise, has completed many projects in Haridwar and is currently developing projects in Mohali and Ludhiana. It builds and markets projects under the brand Hero Homes. "We are coming up with a 9-acre housing project in Sector 104 on Dwarka Expressway named 'Hero Homes - World of Wellness'.