New Delhi, Aug. 27 -- For India's homebuilders, the arithmetic of Jackson Hole arrived weeks ahead of Diwali. The Federal Reserve's clearest signal yet of a September rate cut has redrawn the market for Indian property buyers, and developers from DLF to Prestige Estates are entering a festive sales window that could prove the strongest in three years.

a Reserve Bank of India rate cut now widely expected in October's monetary policy review, and the approaching Navratri-Diwali corridor that historically generates 35-40% of annual residential transaction volumes across India's eight largest property markets.

That confluence has rarely looked so synchronized. Home loan rates at the country's biggest lenders - ranging from 8.50% at State Ban...