New Delhi, Feb. 12 -- Metals giant Hindalco Industries Ltd missed earnings estimates in the December quarter, singed by back-to-back fires at its US crown jewel Novelis Inc.

The Aditya Birla Group flagship reported an almost 45% drop in net profit attributable to owners at Rs.2,049 crore, down from Rs.3,735 crore a year earlier, and well short of the Rs.4,141-crore average estimate from a Bloomberg poll.

The two fires at the Novelis plant in Oswego occurred on 16 September, 2025, and 20 November, 2025, disrupting aluminium supplies to the automotive industry and can makers. Hindalco's profit decline stemmed mainly from Rs.2,610 crore in one-off expenses linked to the Oswego disruption.

Novelis accounted for 57% of Hindalco's revenue in...