India's second-home market is booming as property prices rise and primary home sales slow. Housing.com CEO Dhruv Agarwala highlighted a 26% drop in sales in top cities, prompting investors to explore vacation homes and rental properties in Goa, Alibaug, Lonavala, Dehradun, Nainital, Shimla, Coorg, Ooty, Kasauli, Mussoorie, Panchgani, and Mahabaleshwar.