New Delhi, Nov. 25 -- Ethiopia's Hayli Gubbi volcano erupted for the first time in nearly 10,000 years, prompting India to issue aviation alerts as ash clouds drifted across several northern states. Major carriers, including IndiGo and Akasa Air, adjusted their operations in response to the shifting plume as the impact on airspace became clearer.

Authorities instructed airports to maintain heightened readiness as the ash cloud, travelling rapidly at high altitudes, entered Gujarat before moving over Rajasthan, Delhi, Haryana and Punjab. At Delhi airport, several international flights bound for destinations such as Hong Kong, Dubai, Jeddah, Helsinki, Kabul and Frankfurt were delayed, reflecting the wider operational disruption.

The long-...