IndiGo has launched its ‘Happy IndiGo Day’ campaign, IndiGoFree, offering selected customers a refund of up to ₹10,000 per PNR on eligible domestic bookings made between August 4 and August 6, 2026. The initiative celebrates the airline’s 20th anniversary while rewarding travellers with complimentary tickets. Winners will receive fare refunds after booking, making the campaign a unique incentive for domestic flyers.