The document discusses affordable housing in India. It defines affordable housing based on income level, dwelling unit size, and affordability (housing costs not exceeding 30% of income). Demand is driven by rapid urbanization and a growing middle class. However, supply faces constraints like high land and construction costs. The government, developers, and financial institutions all have roles to play in increasing affordable housing through measures like subsidies, increased development rights, and loans respectively. Overall 24.71 million housing units are required to fulfill the current shortage, with over 99% of demand from low-income groups. An investment of Rs. 600,000 crore is estimated to meet this need.