India's luxury residential market has witnessed a significant growth in the last decade. As per leading real estate consultants, demand for ultra-luxury homes priced above ₹100 crore has surged in Mumbai, Delhi, Bengaluru and Hyderabad. From a real estate perspective, factors such as land scarcity, heritage value, development potential, sea-facing locations, plot size and zoning restrictions significantly influence their prices.Here's a look at India's 10 most expensive private residences.Sources: Magicbricks, Knight Frank India Wealth Report, CBRE India Research, Forbes Real-Time Billionaires List and The Times of India Real Estate.