The airline has launched the campaign, titled 'IndiGoFree', under which eligible customers can get the full fare of their domestic bookings refunded.

The offer is valid for domestic flight bookings made through IndiGo's direct channels, including its website, mobile app and 6Eskai, the airline's AI-powered virtual assistant, between August 4 and August 6, 2026.

Explaining the offer, IndiGo said in a statement: "Eligible customers, selected at random from bookings made during the offer period, will receive an email and WhatsApp message inviting them to answer a simple question. They will have three chances to answer it correctly."

Customers who answer the question correctly will receive a refund of their booking fare, up to ₹10,000 per PNR, within three to five business days, the airline said.

"The offer applies to all domestic Economy Class and IndiGoStretch bookings for both one-way and return journeys," the statement added.

With a fleet of more than 430 aircraft, IndiGo operates nearly 2,200 daily flights, connecting over 95 domestic and more than 40 international destinations.

The airline carried more than 123 million passengers during the financial year 2025-26.