India's retail inflation (CPI) hit a record low of 0.25% in October 2025, the lowest since the current data series began in 2015. Food inflation plunged to -5.02%, continuing negative for the fifth consecutive month. Two main drivers were the full-month impact of GST rationalisation (effective September 22, 2025), which alone contributed an estimated 85 basis point reduction in CPI, and a favourable base effect. Prices of cooking oils, vegetables, fruits, eggs, cereals, and footwear all fell. The RBI had already cut the policy repo rate from 6.5% in January to 5.5% by September 2025, further easing monetary conditions.